diff --git a/build-constraints.yaml b/build-constraints.yaml
index f6aca82e..0cc50811 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4545,9 +4545,6 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4469
         - cmark-gfm < 0.2.0
 
-        # https://github.com/commercialhaskell/stackage/issues/4479
-        - rio < 0.1.9.0
-
         # https://github.com/commercialhaskell/stackage/issues/4483
         - http-media < 0.8.0.0