diff --git a/build-constraints.yaml b/build-constraints.yaml
index b375bda3..5c656afc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3443,7 +3443,7 @@ packages:
         - socket-activation < 0 # via network-3.1.1.0
 
     "aiya000 <aiya000.develop@gmail.com> @aiya000":
-        - character-cases # 0.1.0.5 # https://github.com/commercialhaskell/stackage/issues/5404
+        - character-cases
         - throwable-exceptions
 
     "Mitsutoshi Aoe <maoe@foldr.in> @maoe":
@@ -5586,6 +5586,7 @@ expected-test-failures:
     - haskeline # https://github.com/commercialhaskell/stackage/issues/5439
     - http-client # https://github.com/commercialhaskell/stackage/issues/5470
     - http-directory # https://github.com/commercialhaskell/stackage/issues/5471
+    - character-cases # https://github.com/aiya000/hs-character-cases/issues/3
 
     # Compilation failures
     - ListLike # No issue tracker, e-mail sent to maintainer