diff --git a/plugins/modules/cloud/digital_ocean/digital_ocean.py b/plugins/modules/cloud/digital_ocean/digital_ocean.py
index 138b0c71c1..f661df5c2a 100644
--- a/plugins/modules/cloud/digital_ocean/digital_ocean.py
+++ b/plugins/modules/cloud/digital_ocean/digital_ocean.py
@@ -434,13 +434,13 @@ def main():
             image_id=dict(),
             region_id=dict(),
             ssh_key_ids=dict(type='list'),
-            virtio=dict(type='bool', default='yes'),
-            private_networking=dict(type='bool', default='no'),
-            backups_enabled=dict(type='bool', default='no'),
+            virtio=dict(type='bool', default=True),
+            private_networking=dict(type='bool', default=False),
+            backups_enabled=dict(type='bool', default=False),
             id=dict(aliases=['droplet_id'], type='int'),
-            unique_name=dict(type='bool', default='no'),
+            unique_name=dict(type='bool', default=False),
             user_data=dict(default=None),
-            ipv6=dict(type='bool', default='no'),
+            ipv6=dict(type='bool', default=False),
             wait=dict(type='bool', default=True),
             wait_timeout=dict(default=300, type='int'),
             ssh_pub_key=dict(type='str'),
diff --git a/plugins/modules/cloud/google/gc_storage.py b/plugins/modules/cloud/google/gc_storage.py
index c937955c1a..eb4d3a838c 100644
--- a/plugins/modules/cloud/google/gc_storage.py
+++ b/plugins/modules/cloud/google/gc_storage.py
@@ -409,7 +409,7 @@ def main():
             gs_access_key=dict(required=True),
             overwrite=dict(default=True, type='bool', aliases=['force']),
             region=dict(default='US', type='str'),
-            versioning=dict(default='no', type='bool')
+            versioning=dict(default=False, type='bool')
         ),
     )
 
diff --git a/plugins/modules/cloud/misc/proxmox.py b/plugins/modules/cloud/misc/proxmox.py
index ad330b3a26..057108397e 100644
--- a/plugins/modules/cloud/misc/proxmox.py
+++ b/plugins/modules/cloud/misc/proxmox.py
@@ -444,7 +444,7 @@ def main():
             api_user=dict(required=True),
             api_password=dict(no_log=True),
             vmid=dict(required=False),
-            validate_certs=dict(type='bool', default='no'),
+            validate_certs=dict(type='bool', default=False),
             node=dict(),
             pool=dict(),
             password=dict(no_log=True),
@@ -458,16 +458,16 @@ def main():
             netif=dict(type='dict'),
             mounts=dict(type='dict'),
             ip_address=dict(),
-            onboot=dict(type='bool', default='no'),
+            onboot=dict(type='bool', default=False),
             storage=dict(default='local'),
             cpuunits=dict(type='int', default=1000),
             nameserver=dict(),
             searchdomain=dict(),
             timeout=dict(type='int', default=30),
-            force=dict(type='bool', default='no'),
+            force=dict(type='bool', default=False),
             state=dict(default='present', choices=['present', 'absent', 'stopped', 'started', 'restarted']),
             pubkey=dict(type='str', default=None),
-            unprivileged=dict(type='bool', default='no'),
+            unprivileged=dict(type='bool', default=False),
             description=dict(type='str'),
             hookscript=dict(type='str'),
         )
diff --git a/plugins/modules/cloud/misc/proxmox_kvm.py b/plugins/modules/cloud/misc/proxmox_kvm.py
index 70b012d0c4..ca7de51301 100644
--- a/plugins/modules/cloud/misc/proxmox_kvm.py
+++ b/plugins/modules/cloud/misc/proxmox_kvm.py
@@ -788,13 +788,13 @@ def proxmox_version(proxmox):
 def main():
     module = AnsibleModule(
         argument_spec=dict(
-            acpi=dict(type='bool', default='yes'),
+            acpi=dict(type='bool', default=True),
             agent=dict(type='bool'),
             args=dict(type='str', default=None),
             api_host=dict(required=True),
             api_user=dict(required=True),
             api_password=dict(no_log=True),
-            autostart=dict(type='bool', default='no'),
+            autostart=dict(type='bool', default=False),
             balloon=dict(type='int', default=0),
             bios=dict(choices=['seabios', 'ovmf']),
             boot=dict(type='str', default='cnd'),
@@ -810,13 +810,13 @@ def main():
             force=dict(type='bool', default=None),
             format=dict(type='str', default='qcow2', choices=['cloop', 'cow', 'qcow', 'qcow2', 'qed', 'raw', 'vmdk']),
             freeze=dict(type='bool'),
-            full=dict(type='bool', default='yes'),
+            full=dict(type='bool', default=True),
             hostpci=dict(type='dict'),
             hotplug=dict(type='str'),
             hugepages=dict(choices=['any', '2', '1024']),
             ide=dict(type='dict', default=None),
             keyboard=dict(type='str'),
-            kvm=dict(type='bool', default='yes'),
+            kvm=dict(type='bool', default=True),
             localtime=dict(type='bool'),
             lock=dict(choices=['migrate', 'backup', 'snapshot', 'rollback']),
             machine=dict(type='str'),
@@ -829,7 +829,7 @@ def main():
             node=dict(),
             numa=dict(type='dict'),
             numa_enabled=dict(type='bool'),
-            onboot=dict(type='bool', default='yes'),
+            onboot=dict(type='bool', default=True),
             ostype=dict(default='l26', choices=['other', 'wxp', 'w2k', 'w2k3', 'w2k8', 'wvista', 'win7', 'win8', 'win10', 'l24', 'l26', 'solaris']),
             parallel=dict(type='dict'),
             pool=dict(type='str'),
@@ -849,13 +849,13 @@ def main():
             startup=dict(),
             state=dict(default='present', choices=['present', 'absent', 'stopped', 'started', 'restarted', 'current']),
             storage=dict(type='str'),
-            tablet=dict(type='bool', default='no'),
+            tablet=dict(type='bool', default=False),
             target=dict(type='str'),
             tdf=dict(type='bool'),
-            template=dict(type='bool', default='no'),
+            template=dict(type='bool', default=False),
             timeout=dict(type='int', default=30),
-            update=dict(type='bool', default='no'),
-            validate_certs=dict(type='bool', default='no'),
+            update=dict(type='bool', default=False),
+            validate_certs=dict(type='bool', default=False),
             vcpus=dict(type='int', default=None),
             vga=dict(default='std', choices=['std', 'cirrus', 'vmware', 'qxl', 'serial0', 'serial1', 'serial2', 'serial3', 'qxl2', 'qxl3', 'qxl4']),
             virtio=dict(type='dict', default=None),
diff --git a/plugins/modules/cloud/misc/proxmox_template.py b/plugins/modules/cloud/misc/proxmox_template.py
index 41691a5c53..f47222765c 100644
--- a/plugins/modules/cloud/misc/proxmox_template.py
+++ b/plugins/modules/cloud/misc/proxmox_template.py
@@ -166,14 +166,14 @@ def main():
             api_host=dict(required=True),
             api_user=dict(required=True),
             api_password=dict(no_log=True),
-            validate_certs=dict(type='bool', default='no'),
+            validate_certs=dict(type='bool', default=False),
             node=dict(),
             src=dict(type='path'),
             template=dict(),
             content_type=dict(default='vztmpl', choices=['vztmpl', 'iso']),
             storage=dict(default='local'),
             timeout=dict(type='int', default=30),
-            force=dict(type='bool', default='no'),
+            force=dict(type='bool', default=False),
             state=dict(default='present', choices=['present', 'absent']),
         )
     )
diff --git a/plugins/modules/database/misc/riak.py b/plugins/modules/database/misc/riak.py
index 8f6b5ecb95..089e37275f 100644
--- a/plugins/modules/database/misc/riak.py
+++ b/plugins/modules/database/misc/riak.py
@@ -97,7 +97,7 @@ def main():
             wait_for_ring=dict(default=False, type='int'),
             wait_for_service=dict(
                 required=False, default=None, choices=['kv']),
-            validate_certs=dict(default='yes', type='bool'))
+            validate_certs=dict(default=True, type='bool'))
     )
 
     command = module.params.get('command')
diff --git a/plugins/modules/database/postgresql/postgresql_user.py b/plugins/modules/database/postgresql/postgresql_user.py
index ae55dd6cba..050ac5c95a 100644
--- a/plugins/modules/database/postgresql/postgresql_user.py
+++ b/plugins/modules/database/postgresql/postgresql_user.py
@@ -869,10 +869,10 @@ def main():
         state=dict(type='str', default='present', choices=['absent', 'present']),
         priv=dict(type='str', default=None),
         db=dict(type='str', default='', aliases=['login_db']),
-        fail_on_user=dict(type='bool', default='yes', aliases=['fail_on_role']),
+        fail_on_user=dict(type='bool', default=True, aliases=['fail_on_role']),
         role_attr_flags=dict(type='str', default=''),
-        encrypted=dict(type='bool', default='yes'),
-        no_password_changes=dict(type='bool', default='no', no_log=False),
+        encrypted=dict(type='bool', default=True),
+        no_password_changes=dict(type='bool', default=False, no_log=False),
         expires=dict(type='str', default=None),
         conn_limit=dict(type='int', default=None),
         session_role=dict(type='str'),
diff --git a/plugins/modules/monitoring/airbrake_deployment.py b/plugins/modules/monitoring/airbrake_deployment.py
index 068be9eea6..104d19555e 100644
--- a/plugins/modules/monitoring/airbrake_deployment.py
+++ b/plugins/modules/monitoring/airbrake_deployment.py
@@ -104,7 +104,7 @@ def main():
             repo=dict(required=False),
             revision=dict(required=False),
             url=dict(required=False, default='https://api.airbrake.io/api/v4/projects/'),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         supports_check_mode=True,
         required_together=[('project_id', 'project_key')],
diff --git a/plugins/modules/monitoring/bigpanda.py b/plugins/modules/monitoring/bigpanda.py
index b0fe61db6b..3df6bfb22e 100644
--- a/plugins/modules/monitoring/bigpanda.py
+++ b/plugins/modules/monitoring/bigpanda.py
@@ -137,7 +137,7 @@ def main():
                                     deprecated_aliases=[dict(name='message', version='3.0.0',
                                                              collection_name='community.general')]),  # was Ansible 2.14
             source_system=dict(required=False, default='ansible'),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
             url=dict(required=False, default='https://api.bigpanda.io'),
         ),
         supports_check_mode=True,
diff --git a/plugins/modules/monitoring/datadog/datadog_event.py b/plugins/modules/monitoring/datadog/datadog_event.py
index 387f68f340..037bed887e 100644
--- a/plugins/modules/monitoring/datadog/datadog_event.py
+++ b/plugins/modules/monitoring/datadog/datadog_event.py
@@ -115,7 +115,7 @@ def main():
                 choices=['error', 'warning', 'info', 'success']
             ),
             aggregation_key=dict(required=False, default=None),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         )
     )
 
diff --git a/plugins/modules/monitoring/honeybadger_deployment.py b/plugins/modules/monitoring/honeybadger_deployment.py
index 3da1d133e7..1075095ea5 100644
--- a/plugins/modules/monitoring/honeybadger_deployment.py
+++ b/plugins/modules/monitoring/honeybadger_deployment.py
@@ -79,7 +79,7 @@ def main():
             repo=dict(required=False),
             revision=dict(required=False),
             url=dict(required=False, default='https://api.honeybadger.io/v1/deploys'),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         supports_check_mode=True
     )
diff --git a/plugins/modules/monitoring/newrelic_deployment.py b/plugins/modules/monitoring/newrelic_deployment.py
index 7c643b2b73..fb608be80c 100644
--- a/plugins/modules/monitoring/newrelic_deployment.py
+++ b/plugins/modules/monitoring/newrelic_deployment.py
@@ -94,7 +94,7 @@ def main():
             user=dict(required=False),
             appname=dict(required=False),
             environment=dict(required=False),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         required_one_of=[['app_name', 'application_id']],
         supports_check_mode=True
diff --git a/plugins/modules/monitoring/pagerduty.py b/plugins/modules/monitoring/pagerduty.py
index 0fe49c3c2c..3725f3f6fd 100644
--- a/plugins/modules/monitoring/pagerduty.py
+++ b/plugins/modules/monitoring/pagerduty.py
@@ -231,7 +231,7 @@ def main():
             hours=dict(default='1', required=False),
             minutes=dict(default='0', required=False),
             desc=dict(default='Created by Ansible', required=False),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         )
     )
 
diff --git a/plugins/modules/monitoring/rollbar_deployment.py b/plugins/modules/monitoring/rollbar_deployment.py
index 122745cab8..2b99e7c30a 100644
--- a/plugins/modules/monitoring/rollbar_deployment.py
+++ b/plugins/modules/monitoring/rollbar_deployment.py
@@ -95,7 +95,7 @@ def main():
                 required=False,
                 default='https://api.rollbar.com/api/1/deploy/'
             ),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         supports_check_mode=True
     )
diff --git a/plugins/modules/monitoring/spectrum_device.py b/plugins/modules/monitoring/spectrum_device.py
index 127eadddec..88e81ebf00 100644
--- a/plugins/modules/monitoring/spectrum_device.py
+++ b/plugins/modules/monitoring/spectrum_device.py
@@ -306,8 +306,8 @@ def main():
             url=dict(required=True, aliases=['oneclick_url']),
             url_username=dict(required=True, aliases=['oneclick_user']),
             url_password=dict(required=True, no_log=True, aliases=['oneclick_password']),
-            use_proxy=dict(type='bool', default='yes'),
-            validate_certs=dict(type='bool', default='yes'),
+            use_proxy=dict(type='bool', default=True),
+            validate_certs=dict(type='bool', default=True),
         ),
         required_if=[('state', 'present', ['community'])],
         supports_check_mode=True
diff --git a/plugins/modules/net_tools/dnsmadeeasy.py b/plugins/modules/net_tools/dnsmadeeasy.py
index 8219a365ca..7e8e992690 100644
--- a/plugins/modules/net_tools/dnsmadeeasy.py
+++ b/plugins/modules/net_tools/dnsmadeeasy.py
@@ -530,14 +530,14 @@ def main():
             account_key=dict(required=True),
             account_secret=dict(required=True, no_log=True),
             domain=dict(required=True),
-            sandbox=dict(default='no', type='bool'),
+            sandbox=dict(default=False, type='bool'),
             state=dict(required=True, choices=['present', 'absent']),
             record_name=dict(required=False),
             record_type=dict(required=False, choices=[
                              'A', 'AAAA', 'CNAME', 'ANAME', 'HTTPRED', 'MX', 'NS', 'PTR', 'SRV', 'TXT']),
             record_value=dict(required=False),
             record_ttl=dict(required=False, default=1800, type='int'),
-            monitor=dict(default='no', type='bool'),
+            monitor=dict(default=False, type='bool'),
             systemDescription=dict(default=''),
             maxEmails=dict(default=1, type='int'),
             protocol=dict(default='HTTP', choices=['TCP', 'UDP', 'HTTP', 'DNS', 'SMTP', 'HTTPS']),
@@ -547,14 +547,14 @@ def main():
             httpFqdn=dict(required=False),
             httpFile=dict(required=False),
             httpQueryString=dict(required=False),
-            failover=dict(default='no', type='bool'),
-            autoFailover=dict(default='no', type='bool'),
+            failover=dict(default=False, type='bool'),
+            autoFailover=dict(default=False, type='bool'),
             ip1=dict(required=False),
             ip2=dict(required=False),
             ip3=dict(required=False),
             ip4=dict(required=False),
             ip5=dict(required=False),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         required_together=[
             ['record_value', 'record_ttl', 'record_type']
diff --git a/plugins/modules/notification/bearychat.py b/plugins/modules/notification/bearychat.py
index fd1c84a96f..32e5074f80 100644
--- a/plugins/modules/notification/bearychat.py
+++ b/plugins/modules/notification/bearychat.py
@@ -152,7 +152,7 @@ def main():
     module = AnsibleModule(argument_spec={
         'url': dict(type='str', required=True, no_log=True),
         'text': dict(type='str'),
-        'markdown': dict(default='yes', type='bool'),
+        'markdown': dict(default=True, type='bool'),
         'channel': dict(type='str'),
         'attachments': dict(type='list'),
     })
diff --git a/plugins/modules/notification/flowdock.py b/plugins/modules/notification/flowdock.py
index 741348e523..166c5c0131 100644
--- a/plugins/modules/notification/flowdock.py
+++ b/plugins/modules/notification/flowdock.py
@@ -120,7 +120,7 @@ def main():
             project=dict(required=False),
             tags=dict(required=False),
             link=dict(required=False),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         ),
         supports_check_mode=True
     )
diff --git a/plugins/modules/notification/grove.py b/plugins/modules/notification/grove.py
index eff5e2b1c0..9a01ca6092 100644
--- a/plugins/modules/notification/grove.py
+++ b/plugins/modules/notification/grove.py
@@ -91,7 +91,7 @@ def main():
             service=dict(type='str', default='ansible'),
             url=dict(type='str', default=None),
             icon_url=dict(type='str', default=None),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         )
     )
 
diff --git a/plugins/modules/notification/hipchat.py b/plugins/modules/notification/hipchat.py
index cc82bb2f4f..b2c817778b 100644
--- a/plugins/modules/notification/hipchat.py
+++ b/plugins/modules/notification/hipchat.py
@@ -173,7 +173,7 @@ def main():
                                                   "purple", "gray", "random"]),
             msg_format=dict(default="text", choices=["text", "html"]),
             notify=dict(default=True, type='bool'),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
             api=dict(default=DEFAULT_URI),
         ),
         supports_check_mode=True
diff --git a/plugins/modules/notification/mattermost.py b/plugins/modules/notification/mattermost.py
index 9e66ccffb8..e16a7331dd 100644
--- a/plugins/modules/notification/mattermost.py
+++ b/plugins/modules/notification/mattermost.py
@@ -97,7 +97,7 @@ def main():
             channel=dict(type='str', default=None),
             username=dict(type='str', default='Ansible'),
             icon_url=dict(type='str', default='https://www.ansible.com/favicon.ico'),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
         )
     )
     # init return dict
diff --git a/plugins/modules/notification/rocketchat.py b/plugins/modules/notification/rocketchat.py
index 8bd67772a9..6467d600c6 100644
--- a/plugins/modules/notification/rocketchat.py
+++ b/plugins/modules/notification/rocketchat.py
@@ -202,7 +202,7 @@ def main():
             icon_url=dict(type='str', default='https://www.ansible.com/favicon.ico'),
             icon_emoji=dict(type='str', default=None),
             link_names=dict(type='int', default=1, choices=[0, 1]),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
             color=dict(type='str', default='normal', choices=['normal', 'good', 'warning', 'danger']),
             attachments=dict(type='list', required=False, default=None)
         )
diff --git a/plugins/modules/notification/slack.py b/plugins/modules/notification/slack.py
index 3ac492179d..5116999545 100644
--- a/plugins/modules/notification/slack.py
+++ b/plugins/modules/notification/slack.py
@@ -308,7 +308,7 @@ def main():
             icon_emoji=dict(type='str', default=None),
             link_names=dict(type='int', default=1, choices=[0, 1]),
             parse=dict(type='str', default=None, choices=['none', 'full']),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
             color=dict(type='str', default='normal'),
             attachments=dict(type='list', required=False, default=None)
         )
diff --git a/plugins/modules/packaging/language/bower.py b/plugins/modules/packaging/language/bower.py
index 3aadff4624..2d6aaa1c60 100644
--- a/plugins/modules/packaging/language/bower.py
+++ b/plugins/modules/packaging/language/bower.py
@@ -175,8 +175,8 @@ class Bower(object):
 def main():
     arg_spec = dict(
         name=dict(default=None),
-        offline=dict(default='no', type='bool'),
-        production=dict(default='no', type='bool'),
+        offline=dict(default=False, type='bool'),
+        production=dict(default=False, type='bool'),
         path=dict(required=True, type='path'),
         relative_execpath=dict(default=None, required=False, type='path'),
         state=dict(default='present', choices=['present', 'absent', 'latest', ]),
diff --git a/plugins/modules/packaging/language/easy_install.py b/plugins/modules/packaging/language/easy_install.py
index 3256f0813c..698daf2c2c 100644
--- a/plugins/modules/packaging/language/easy_install.py
+++ b/plugins/modules/packaging/language/easy_install.py
@@ -128,7 +128,7 @@ def main():
                    choices=['present', 'latest'],
                    type='str'),
         virtualenv=dict(default=None, required=False),
-        virtualenv_site_packages=dict(default='no', type='bool'),
+        virtualenv_site_packages=dict(default=False, type='bool'),
         virtualenv_command=dict(default='virtualenv', required=False),
         executable=dict(default='easy_install', required=False),
     )
diff --git a/plugins/modules/packaging/language/npm.py b/plugins/modules/packaging/language/npm.py
index c337855f6e..af48117cc9 100644
--- a/plugins/modules/packaging/language/npm.py
+++ b/plugins/modules/packaging/language/npm.py
@@ -238,7 +238,7 @@ def main():
         name=dict(default=None, type='str'),
         path=dict(default=None, type='path'),
         version=dict(default=None, type='str'),
-        production=dict(default='no', type='bool'),
+        production=dict(default=False, type='bool'),
         executable=dict(default=None, type='path'),
         registry=dict(default=None, type='str'),
         state=dict(default='present', choices=['present', 'absent', 'latest']),
@@ -246,7 +246,7 @@ def main():
         unsafe_perm=dict(default=False, type='bool'),
         ci=dict(default=False, type='bool'),
     )
-    arg_spec['global'] = dict(default='no', type='bool')
+    arg_spec['global'] = dict(default=False, type='bool')
     module = AnsibleModule(
         argument_spec=arg_spec,
         supports_check_mode=True
diff --git a/plugins/modules/packaging/language/yarn.py b/plugins/modules/packaging/language/yarn.py
index 6e2bbaa7c9..9346a7ed5a 100644
--- a/plugins/modules/packaging/language/yarn.py
+++ b/plugins/modules/packaging/language/yarn.py
@@ -295,13 +295,13 @@ def main():
         name=dict(default=None),
         path=dict(default=None, type='path'),
         version=dict(default=None),
-        production=dict(default='no', type='bool'),
+        production=dict(default=False, type='bool'),
         executable=dict(default=None, type='path'),
         registry=dict(default=None),
         state=dict(default='present', choices=['present', 'absent', 'latest']),
         ignore_scripts=dict(default=False, type='bool'),
     )
-    arg_spec['global'] = dict(default='no', type='bool')
+    arg_spec['global'] = dict(default=False, type='bool')
     module = AnsibleModule(
         argument_spec=arg_spec,
         supports_check_mode=True
diff --git a/plugins/modules/source_control/bzr.py b/plugins/modules/source_control/bzr.py
index c37de70349..c7a1189557 100644
--- a/plugins/modules/source_control/bzr.py
+++ b/plugins/modules/source_control/bzr.py
@@ -137,7 +137,7 @@ def main():
             dest=dict(type='path', required=True),
             name=dict(type='str', required=True, aliases=['parent']),
             version=dict(type='str', default='head'),
-            force=dict(type='bool', default='no'),
+            force=dict(type='bool', default=False),
             executable=dict(type='str'),
         )
     )
diff --git a/plugins/modules/source_control/github/github_hooks.py b/plugins/modules/source_control/github/github_hooks.py
index 741e84bac8..df53899222 100644
--- a/plugins/modules/source_control/github/github_hooks.py
+++ b/plugins/modules/source_control/github/github_hooks.py
@@ -159,7 +159,7 @@ def main():
             oauthkey=dict(required=True, no_log=True),
             repo=dict(required=True),
             user=dict(required=True),
-            validate_certs=dict(default='yes', type='bool'),
+            validate_certs=dict(default=True, type='bool'),
             content_type=dict(default='json', choices=['json', 'form']),
         )
     )
diff --git a/plugins/modules/storage/infinidat/infini_export_client.py b/plugins/modules/storage/infinidat/infini_export_client.py
index b45eabad79..948d935c2d 100644
--- a/plugins/modules/storage/infinidat/infini_export_client.py
+++ b/plugins/modules/storage/infinidat/infini_export_client.py
@@ -175,7 +175,7 @@ def main():
         dict(
             client=dict(required=True),
             access_mode=dict(choices=['RO', 'RW'], default='RW'),
-            no_root_squash=dict(type='bool', default='no'),
+            no_root_squash=dict(type='bool', default=False),
             state=dict(default='present', choices=['present', 'absent']),
             export=dict(required=True)
         )
diff --git a/plugins/modules/web_infrastructure/django_manage.py b/plugins/modules/web_infrastructure/django_manage.py
index 996b53e9dd..9d45fe185a 100644
--- a/plugins/modules/web_infrastructure/django_manage.py
+++ b/plugins/modules/web_infrastructure/django_manage.py
@@ -234,7 +234,7 @@ def main():
             cache_table=dict(default=None, required=False),
             clear=dict(default=None, required=False, type='bool'),
             database=dict(default=None, required=False),
-            failfast=dict(default='no', required=False, type='bool', aliases=['fail_fast']),
+            failfast=dict(default=False, required=False, type='bool', aliases=['fail_fast']),
             fixtures=dict(default=None, required=False),
             liveserver=dict(default=None, required=False, aliases=['live_server']),
             testrunner=dict(default=None, required=False, aliases=['test_runner']),
diff --git a/plugins/modules/web_infrastructure/htpasswd.py b/plugins/modules/web_infrastructure/htpasswd.py
index e7ced94439..f8e73af32f 100644
--- a/plugins/modules/web_infrastructure/htpasswd.py
+++ b/plugins/modules/web_infrastructure/htpasswd.py
@@ -200,7 +200,7 @@ def main():
         password=dict(required=False, default=None, no_log=True),
         crypt_scheme=dict(required=False, default="apr_md5_crypt"),
         state=dict(required=False, default="present"),
-        create=dict(type='bool', default='yes'),
+        create=dict(type='bool', default=True),
 
     )
     module = AnsibleModule(argument_spec=arg_spec,