diff --git a/.github/workflows/ubuntu-cython.yml b/.github/workflows/ubuntu-cython.yml
index 3a5c28514..2d0051dc4 100644
--- a/.github/workflows/ubuntu-cython.yml
+++ b/.github/workflows/ubuntu-cython.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.12', '3.11']
+        python-version: ['3.12']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}