diff --git a/stm-containers.cabal b/stm-containers.cabal
--- a/stm-containers.cabal
+++ b/stm-containers.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.0
 name: stm-containers
-version: 1.2.1
+version: 1.2.1.1
 synopsis: Containers for STM
 description:
   This library is based on an STM-specialized implementation of
@@ -146,4 +146,4 @@
     stm-containers,
     tasty >=0.12 && <2,
     tasty-hunit >=0.10.0.3 && <0.11,
-    tasty-quickcheck >=0.10.2 && <0.11,
+    tasty-quickcheck >=0.10.2 && <0.12,