diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6291c1d4..d7eb57fe 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3876,9 +3876,6 @@ packages:
         - protocol-buffers < 2.4.12
         - protocol-buffers-descriptor < 2.4.12
 
-        # https://github.com/commercialhaskell/stackage/issues/4188
-        - chan < 0.0.4
-
         # https://github.com/commercialhaskell/stackage/issues/4193
         - Earley < 0.13