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: 1.2.0.2
+version: 1.2.0.3
 synopsis: STM-specialised Hash Array Mapped Trie
 description:
   A low-level data-structure,
@@ -39,7 +39,7 @@
     focus >=1 && <1.1,
     hashable <2,
     list-t >=1.0.1 && <1.1,
-    primitive >=0.6.4 && <0.7,
+    primitive >=0.6.4 && <0.8,
     primitive-extras >=0.7 && <0.8,
     transformers >=0.5 && <0.6