diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 4a291ca6b..822f8800f 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -28,6 +28,7 @@ jobs:
         python -m pip install --editable="./allenact_plugins[all]"
         python -m pip install pip install -r allenact_plugins/babyai_plugin/extra_requirements.txt # Required as babyai is not on PyPI
         python -m pip install compress_pickle # Needed for some mapping tests
+        python -m pip install -U protobuf==3.20.1 # Required until tensorboardX is fixed: https://github.com/lanpa/tensorboardX/issues/663
         pip list
 
     - name: Test with pytest