diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7b19fc61..538728f0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1854,9 +1854,6 @@ expected-test-failures:
     # https://github.com/barrucadu/dejafu/issues/14
     - dejafu
 
-    # Fixed on master
-    - amazonka-core
-
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4