diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 3bf2f92..19b4fc2 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine
 
 RUN apk update &&       \
-  apk add --no-cache curl jq bash git coreutils zip openssh zsh nodejs npm yarn &&  \
+  apk add --no-cache curl jq bash git coreutils zip openssh zsh nodejs npm yarn docker &&  \
   rm -rf /var/cache/apk/*
 
 CMD [ "zsh" ]
diff --git a/ubuntu/Dockerfile b/ubuntu/Dockerfile
index 6b3f69b..2eac202 100644
--- a/ubuntu/Dockerfile
+++ b/ubuntu/Dockerfile
@@ -1,5 +1,5 @@
 FROM ubuntu
 
 RUN apt-get -y update &&       \
-  apt-get install -y curl jq bash git zsh docker nodejs npm yarn
+  apt-get install -y curl jq bash git zsh docker nodejs npm yarn docker
 CMD [ "zsh" ]