diff --git a/dev/containers/Dockerfile b/dev/containers/Dockerfile
index 016b00b6..9d5a03a7 100644
--- a/dev/containers/Dockerfile
+++ b/dev/containers/Dockerfile
@@ -6,7 +6,8 @@ LABEL maintainer "requarks.io"
 
 RUN apt-get update && \
     apt-get install -y bash curl git python3 make g++ nano openssh-server gnupg && \
-    mkdir -p /wiki
+    mkdir -p /wiki && \
+    apt-get clean
 
 WORKDIR /wiki