diff --git a/build-constraints.yaml b/build-constraints.yaml
index 98e8aaf5..083454f6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1911,9 +1911,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1096
         - deepseq-generics < 0.2
 
-        # https://github.com/fpco/stackage/issues/1102
-        - async < 2.1
-
         # https://github.com/fpco/stackage/issues/1118
         - protocol-buffers < 2.2
         - protocol-buffers-descriptor < 2.2