diff --git a/.github/workflows/open-source-unit-tests.yml b/.github/workflows/open-source-unit-tests.yml
index 86259432..bff5d39f 100644
--- a/.github/workflows/open-source-unit-tests.yml
+++ b/.github/workflows/open-source-unit-tests.yml
@@ -68,6 +68,13 @@ jobs:
           python-version: "3.8"
           cache: "pip"
 
+      - name: "Determine py-marqo's supported Marqo version"
+        id: marqo_version
+        run: |
+          python -m pip install --upgrade pip
+          pip install marqo
+          echo "::set-output name=version::$(python -c 'from marqo import version; print(version.__marqo_version__)')"
+
       - name: Log into ECR
         uses: docker/login-action@v1
         if: github.event.inputs.push_to == 'ECR'