diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e2b87ddd9c..af91201aac4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -151,6 +151,7 @@ jobs:
       ANSYS_VERSION: ${{ github.event.inputs.ansys_version || '252' }}
       standalone_suffix: ${{needs.pick_server_suffix.outputs.suffix}}
       event_name: ${{ github.event_name }}
+      python_version: "3.11"
     secrets: inherit
 
   upload-development-docs:
diff --git a/requirements/requirements_docs.txt b/requirements/requirements_docs.txt
index c3245946299..a4750003033 100644
--- a/requirements/requirements_docs.txt
+++ b/requirements/requirements_docs.txt
@@ -3,11 +3,10 @@ enum-tools[sphinx]==0.12.0
 graphviz==0.20.1
 imageio==2.37.0
 imageio-ffmpeg==0.6.0
-nbsphinx==0.9.7
 pypandoc==1.15
 pytest-sphinx==0.6.3
 pyvista==0.44.2
-sphinx==8.1.3
+sphinx==8.2.3
 sphinx-copybutton==0.5.2
 sphinx-gallery==0.19.0
 sphinx-jinja==2.0.2