diff --git a/Dockerfile b/Dockerfile
index ae8946d..e873b0f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,11 +2,22 @@
 
 FROM alpine:3.2
 
+ENV VERSION 1.9.1
+
 MAINTAINER dockerbench.com
 
+WORKDIR /usr/bin
+
 RUN apk update && \
     apk upgrade && \
-    apk --update add docker
+    apk --update add curl && \
+    curl -sS https://get.docker.com/builds/Linux/x86_64/docker-$VERSION > docker-$VERSION && \
+    curl -sS https://get.docker.com/builds/Linux/x86_64/docker-$VERSION.sha256 > docker-$VERSION.sha256 && \
+    sha256sum -c docker-$VERSION.sha256 && \
+    ln -s docker-$VERSION docker && \
+    chmod u+x docker-$VERSION && \
+    apk del curl && \
+    rm -rf /var/cache/apk/*
 
 RUN mkdir /docker-bench-security
 
diff --git a/distros/Dockerfile.alpine b/distros/Dockerfile.alpine
index ae8946d..e873b0f 100644
--- a/distros/Dockerfile.alpine
+++ b/distros/Dockerfile.alpine
@@ -2,11 +2,22 @@
 
 FROM alpine:3.2
 
+ENV VERSION 1.9.1
+
 MAINTAINER dockerbench.com
 
+WORKDIR /usr/bin
+
 RUN apk update && \
     apk upgrade && \
-    apk --update add docker
+    apk --update add curl && \
+    curl -sS https://get.docker.com/builds/Linux/x86_64/docker-$VERSION > docker-$VERSION && \
+    curl -sS https://get.docker.com/builds/Linux/x86_64/docker-$VERSION.sha256 > docker-$VERSION.sha256 && \
+    sha256sum -c docker-$VERSION.sha256 && \
+    ln -s docker-$VERSION docker && \
+    chmod u+x docker-$VERSION && \
+    apk del curl && \
+    rm -rf /var/cache/apk/*
 
 RUN mkdir /docker-bench-security