diff --git a/build-constraints.yaml b/build-constraints.yaml
index dcaced38..876760a9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -758,9 +758,6 @@ packages:
         # https://github.com/fpco/stackage/issues/424
         - control-monad-free < 0.6
 
-        # https://github.com/fpco/stackage/issues/426
-        - utf8-string < 1
-
         # https://github.com/fpco/stackage/issues/440
         - th-orphans < 0.9
         - file-location < 0.4.7