diff --git a/sphinx/Dockerfile b/sphinx/Dockerfile
index c3df601..6ad34a5 100644
--- a/sphinx/Dockerfile
+++ b/sphinx/Dockerfile
@@ -1,35 +1,34 @@
 # syntax=docker/dockerfile:experimental
 ARG REGISTRY=swh-jenkins
 FROM $REGISTRY/base-buster
 
 ARG PLANTUML_VERSION=1.2021.12
 
 USER root
 
 RUN --mount=type=cache,id=apt-cache,target=/var/cache/apt --mount=type=cache,id=apt-lists,target=/var/lib/apt \
   export DEBIAN_FRONTEND=noninteractive && \
   apt-get update && \
   apt-get install -y --no-install-recommends \
     crudini \
     dia \
     graphviz \
     inkscape \
     libffi-dev \
     maven \
     make \
     myrepos \
     plantuml \
     postgresql-autodoc \
     rsync \
     tox \
     wget && \
-  mkdir /home/jenkins/.cache && \
-  chown jenkins:jenkins /home/jenkins/.cache && \
+  mkdir -p /home/jenkins/.cache/pip && \
+  chown -R jenkins:jenkins /home/jenkins/.cache && \
   wget -O /usr/share/plantuml/plantuml.jar https://github.com/plantuml/plantuml/releases/download/v${PLANTUML_VERSION}/plantuml-${PLANTUML_VERSION}.jar
 
 USER jenkins
 
 RUN --mount=type=cache,id=pip-cache,target=/home/jenkins/.cache/pip,uid=115,gid=120 \
   python3 -m pip install --user --upgrade \
-    pre-commit \
-  && chown jenkins:jenkins /home/jenkins/.cache
+    pre-commit