diff --git a/tox/Dockerfile b/tox/Dockerfile
index cf7cbfb..4938559 100644
--- a/tox/Dockerfile
+++ b/tox/Dockerfile
@@ -1,11 +1,11 @@
 ARG REGISTRY=swh-jenkins
 FROM $REGISTRY/base
 LABEL maintainer="SoftwareHeritage"
 USER root
 
 USER jenkins
 
 RUN python3 -m pip install --user --upgrade \
   pip setuptools tox wheel twine
 RUN python3 -m pip install --user --no-warn-script-location \
-  Radon pylint coverage codespell
+  Radon pylint coverage codespell pyarcanist