diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7e03611a..22a5b965 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1935,6 +1935,9 @@ expected-test-failures:
     # https://github.com/agrafix/users/issues/3
     - users-persistent
 
+    # Requires a running server
+    - pipes-mongodb
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4