diff --git a/protolude.cabal b/protolude.cabal
index 365d9d388..c2d652c59 100644
--- a/protolude.cabal
+++ b/protolude.cabal
@@ -67,7 +67,7 @@ library
     base                >= 4.6  && <4.11,
     array               >= 0.4  && <0.6,
     ghc-prim            >= 0.3  && <0.6,
-    async               >= 2.0  && <2.2,
+    async               >= 2.0  && <2.3,
     deepseq             >= 1.3  && <1.5,
     containers          >= 0.5  && <0.6,
     hashable            >= 1.2  && <1.3,