diff --git a/keys.cabal b/keys.cabal
--- a/keys.cabal
+++ b/keys.cabal
@@ -1,6 +1,6 @@
 name:          keys
 category:      Data Structures, Containers
-version:       3.0
+version:       3.0.1
 license:       BSD3
 cabal-version: >= 1.6
 license-file:  LICENSE
@@ -29,7 +29,7 @@
     semigroupoids        >= 3.0     && < 3.1,
     comonad-transformers >= 3.0     && < 3.1,
     comonads-fd          >= 3.0     && < 3.1,
-    free                 >= 3.0     && < 3.1
+    free                 >= 3.0     && < 3.3
 
   exposed-modules:
     Data.Key