diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 203e34fd6511c1186cfcd7c335c6773e04043167..e4dc45ec77b201982e8cde8cd35c2b96da2ae1b7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -615,6 +615,7 @@ release-docs:
       - /^release-.*/
   before_script:
     - "apk add git make sed wget openssh"
+    - "pip install -r ./requirements.txt"
   script:
     - make gen-docs-doc
     - eval $(ssh-agent -s)