diff --git a/build-constraints.yaml b/build-constraints.yaml
index decf4a4e..c2047b9c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -626,9 +626,6 @@ packages:
         # https://github.com/fpco/stackage/issues/319
         - polyparse < 1.10
 
-        # https://github.com/nikita-volkov/stm-containers/issues/3
-        - free < 4.10
-
         # https://github.com/fpco/stackage/issues/370
         - monad-control < 1
         - hasql < 0.5