diff --git a/stm-hamt.cabal b/stm-hamt.cabal
--- a/stm-hamt.cabal
+++ b/stm-hamt.cabal
@@ -1,7 +1,7 @@
 name:
   stm-hamt
 version:
-  1.1
+  1.1.0.1
 synopsis:
   STM-specialised Hash Array Mapped Trie
 description:
@@ -61,7 +61,7 @@
     focus >=1 && <1.1,
     hashable <2,
     primitive >=0.6.4 && <0.7,
-    primitive-extras >=0.5.1 && <0.6
+    primitive-extras >=0.6 && <0.7
 
 test-suite test
   type: