diff --git a/Dockerfile b/Dockerfile
index a825074..49165ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,9 @@
 FROM alpine:3.11.6
 
+RUN apk add --no-cache shellcheck bash
+
 COPY runaction.sh /action/runaction.sh
-
-RUN apk add --no-cache shellcheck
-
-ENTRYPOINT ["sh", "/action/runaction.sh"]
+ENTRYPOINT ["bash", "/action/runaction.sh"]
 
 LABEL "name"="ShellCheck"
 LABEL "maintainer"="Ludeeus <hi@ludeeus.dev>"