diff --git a/.github/workflows/reusable-docs.yml b/.github/workflows/reusable-docs.yml
index 3809f24dcc977e..3a0135067ddb7a 100644
--- a/.github/workflows/reusable-docs.yml
+++ b/.github/workflows/reusable-docs.yml
@@ -111,6 +111,8 @@ jobs:
       run: ./configure --with-pydebug
     - name: 'Build CPython'
       run: make -j4
+    - name: 'Remove PyStemmer from requirements.txt'
+      run: sed -i '/PyStemmer.*/d' Doc/requirements.txt
     - name: 'Install build dependencies'
       run: make -C Doc/ PYTHON=../python venv
     # Use "xvfb-run" since some doctest tests open GUI windows
diff --git a/Doc/requirements.txt b/Doc/requirements.txt
index bf1028020b7af7..3d976ba73ff941 100644
--- a/Doc/requirements.txt
+++ b/Doc/requirements.txt
@@ -10,8 +10,10 @@ sphinx~=8.0.0
 
 blurb
 
+# Optional packages, used if installed
 sphinxext-opengraph~=0.9.0
 sphinx-notfound-page~=1.0.0
+PyStemmer~=2.2.0
 
 # The theme used by the documentation is stored separately, so we need
 # to install that as well.