diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f59e56c82..0d22d0a82 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -109,11 +109,17 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
+      - name: Read OpenAPI version
+        id: openapi
+        shell: bash
+        run: echo "version=$(< OPENAPI_VERSION)" >> "$GITHUB_OUTPUT"
       - name: Set up Python ${{ matrix.python_version }}
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: ${{ matrix.python_version }}
       - uses: stripe/openapi/actions/stripe-mock@master
+        with:
+          openapi_version: ${{ steps.openapi.outputs.version }}
 
       - name: "run tests"
         run: just test