diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1b661a7359ff20ede446d885fcbddd9151550dbf..1ef08847a2202f7d294c7bd05835a96b3560cefb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 #image: registry.esss.lu.se/ics-docker/miniconda
-image: python:3-slim
+image: python:3.8-slim
 .pip_install_default: &pip_install_default
     - pip install scipy matplotlib h5py webdavclient3
 variables: