diff --git a/Dockerfile b/Dockerfile
index f978836342c7a43712d8112f31ed649f69fe1635..2db3e4e9c286c954b113200f19a15fe891ce57be 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN set -x && \
     python3-pip \
     python3-flask \
     python3-gunicorn \
-    python3-jinja2 \
+    python3-jinja2 && \
     apt -qq clean