diff --git a/.gitlab/ci/.mk-docs-deploy.yml b/.gitlab/ci/.mk-docs-deploy.yml
index 1fe2613ede37eb436370544b74956fddcedea2f2..5ae91841a77bf249ac11fc57011e0864fe684292 100644
--- a/.gitlab/ci/.mk-docs-deploy.yml
+++ b/.gitlab/ci/.mk-docs-deploy.yml
@@ -1,5 +1,5 @@
 build-mkdocs:
-    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/python:3.9.15-slim-bullseye
+    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/python:3.11.3-slim-bullseye
     stage: build
     before_script:
         - pip install mkdocs-material
@@ -13,7 +13,7 @@ build-mkdocs:
         - if: $CI_COMMIT_REF_PROTECTED == "true"
 
 .pages-options: &pages-options
-    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/python:3.9.15-slim-bullseye
+    image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/python:3.11.3-slim-bullseye
     stage: deploy
     script:
         - mv mkdocs-built public