diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8beb62111bdd048124b1929a598089d25038e009..b9649ff27b8f20c1d93bc1e5989f6a83ef1411a8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: registry-gitlab.pasteur.fr/hub-courses/sphinx-env/sphinx:1.4.1
+image: registry-gitlab.pasteur.fr/hub-courses/sphinx-env/sphinx
 
 sphinx:
   stage: build