diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fed89d9da56645d7eaf88bf54a6e70bc35e4e785..f6c2a6052cec138289498beeea4b34a9b55c9d0f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,6 +19,7 @@ doc:
     only:
         - master
     script:
+        - pip3 install --upgrade sphinx>=5.0
         - export LC_ALL=$(locale -a | grep en_US)
         - export LANG=$(locale -a | grep en_US)
         - pip3 install -e .[doc]
@@ -39,6 +40,7 @@ pages:
     only:
         - master
     script:
+        - pip3 install --upgrade sphinx>=5.0
         - export LC_ALL=$(locale -a | grep en_US)
         - export LANG=$(locale -a | grep en_US)
         - pip3 install -e .[doc]