diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index 0791d28c5..7c6b26f29 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -34,6 +34,13 @@ jobs:
             test_verify*managed-key-happy-path]
             test_verify*managed-key-and-trusted-root]" # see issues 1442, 1244
 
+      - uses: sigstore/sigstore-conformance@21533cde107c734ebc153c3e3a24d75fc9811a36 # v0.0.29
+        with:
+          entrypoint: ${{ github.workspace }}/test/integration/sigstore-python-conformance
+          environment: staging
+          xfail: "test_verify*intoto-with-custom-trust-root]
+            test_verify*managed-key-happy-path]
+            test_verify*managed-key-and-trusted-root]" # see issues 1442, 1244
   file-issue-on-failure:
     needs: [ conformance ]
     if: failure() && github.event_name == 'schedule' && github.repository ==