diff --git a/Dockerfile b/Dockerfile
index 2bd1bf1..5f613b6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -141,7 +141,7 @@ RUN apt-get install --quiet --quiet --yes \
     --no-install-recommends --no-install-suggests \
     $DEPS \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && rm --recursive --force /var/lib/apt/lists/*
 
 # Manually set up the virtual environment, copying the venv over from
 # the compile stage