diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b4a75bb..59977d0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -90,6 +90,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
+          pip install pyopengl==3.1.6
           pip install .[doc]
       - name: Build with Sphinx
         run: cd doc && make html