diff --git a/.github/workflows/build_docs.yml b/.github/workflows/build_docs.yml
index 3973e2be..2f0169b0 100644
--- a/.github/workflows/build_docs.yml
+++ b/.github/workflows/build_docs.yml
@@ -29,7 +29,7 @@ jobs:
       - name: Setup python
         uses: "actions/setup-python@v1"
         with:
-           python-version: "3.11"
+           python-version: "3.12"
 
       - name: "Setup virtualenv and install cogent3[dev]"
         if: startsWith(runner.os, 'macOS') || startsWith(runner.os, 'Linux')