diff --git a/tox/Dockerfile b/tox/Dockerfile
--- a/tox/Dockerfile
+++ b/tox/Dockerfile
@@ -7,9 +7,7 @@
 
 RUN mkdir -p /home/jenkins/.cache/pip
 
-RUN --mount=type=cache,id=pip-cache,target=/home/jenkins/.cache/pip,uid=115,gid=120 \
-  python3 -m pip install --user --upgrade \
-  pip setuptools wheel twine tox
 RUN --mount=type=cache,id=pip-cache,target=/home/jenkins/.cache/pip,uid=115,gid=120 \
   python3 -m pip install --user --upgrade --no-warn-script-location \
+  pip setuptools wheel twine tox \
   Radon pylint coverage codespell pyarcanist