diff --git a/Dockerfile b/Dockerfile
index fb81ba5..44d688c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 FROM docker:dind
 
-RUN apk add --no-cache openssh-client=8.3_p1-r0
+RUN apk add --no-cache \
+  bash=5.0.18-r0 \
+  openssh-client=8.3_p1-r0
 
 COPY plugin.sh /plugin/plugin.sh