diff --git a/glances/Dockerfile b/glances/Dockerfile
index 35e5982..d039396 100644
--- a/glances/Dockerfile
+++ b/glances/Dockerfile
@@ -26,7 +26,7 @@ RUN set -xe \
                          libpng12-dev \
                          pkg-config \
                          python-dev \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /root/.cache/pip /var/lib/apt/lists/*
 
 VOLUME /glances
 WORKDIR /glances
diff --git a/glances/arm/Dockerfile b/glances/arm/Dockerfile
index 47e7ec2..0102e02 100644
--- a/glances/arm/Dockerfile
+++ b/glances/arm/Dockerfile
@@ -26,7 +26,7 @@ RUN set -xe \
                          libpng12-dev \
                          pkg-config \
                          python-dev \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /root/.cache/pip /var/lib/apt/lists/*
 
 VOLUME /glances
 WORKDIR /glances