diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 79e973d43..27494df70 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -68,7 +68,8 @@ RUN addgroup -g 1000 node \
   && apk del .build-deps \
   # smoke tests
   && node --version \
-  && npm --version
+  && npm --version \
+  && rm -rf /tmp/*
 
 ENV YARN_VERSION 0.0.0
 
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index aa3f3c5ec..8afc3dd64 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -36,7 +36,8 @@ RUN ARCH= && dpkgArch="$(dpkg --print-architecture)" \
   && ln -s /usr/local/bin/node /usr/local/bin/nodejs \
   # smoke tests
   && node --version \
-  && npm --version
+  && npm --version \
+  && rm -rf /tmp/*
 
 ENV YARN_VERSION 0.0.0
 
diff --git a/Dockerfile-slim.template b/Dockerfile-slim.template
index 876201d3f..49da9219a 100644
--- a/Dockerfile-slim.template
+++ b/Dockerfile-slim.template
@@ -50,7 +50,8 @@ RUN ARCH= OPENSSL_ARCH= && dpkgArch="$(dpkg --print-architecture)" \
     && ln -s /usr/local/bin/node /usr/local/bin/nodejs \
     # smoke tests
     && node --version \
-    && npm --version
+    && npm --version \
+    && rm -rf /tmp/*
 
 ENV YARN_VERSION 0.0.0