diff --git a/stm-hamt.cabal b/stm-hamt.cabal
--- a/stm-hamt.cabal
+++ b/stm-hamt.cabal
@@ -1,5 +1,5 @@
 name: stm-hamt
-version: 1.2.0.5
+version: 1.2.0.6
 synopsis: STM-specialised Hash Array Mapped Trie
 description:
   A low-level data-structure,
@@ -40,7 +40,7 @@
     hashable <2,
     list-t >=1.0.1 && <1.1,
     primitive >=0.7 && <0.8,
-    primitive-extras >=0.9 && <0.10,
+    primitive-extras >=0.10 && <0.11,
     transformers >=0.5 && <0.6
 
 test-suite test