diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2eca5da6..c67ed8e5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3878,9 +3878,6 @@ expected-test-failures:
     # Requires running PostgreSQL server
     - dbcleaner
 
-    # https://github.com/takano-akio/filelock/issues/4
-    - filelock
-
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run