diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index 9abcde8a..cce578b9 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -25,3 +25,4 @@ jobs:
       - uses: sigstore/sigstore-conformance@c8d17eb7ee884cf86b93a3a3f471648fb0a83819 # v0.0.9
         with:
           entrypoint: ${{ github.workspace }}/test/integration/sigstore-python-conformance
+          xfail: "test_verify_with_trust_root" # see issue 821