diff --git a/build-constraints.yaml b/build-constraints.yaml
index ae0d9d37..923d38e1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2211,6 +2211,9 @@ expected-test-failures:
 
     # https://github.com/fpco/stackage/issues/1000
     - eventstore
+
+    # https://github.com/chrisdone/sourcemap/issues/3
+    - sourcemap
 # end of expected-test-failures