diff --git a/build-constraints.yaml b/build-constraints.yaml
index 27432eee..c7e8a4df 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -858,6 +858,9 @@ expected-test-failures:
     # https://github.com/vincenthz/hs-crypto-pubkey/issues/17
     - crypto-pubkey
 
+    # https://github.com/agrafix/Spock-worker/issues/2
+    - Spock-worker
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4