diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+0.1.8
+-----
+* Support GHC 8
+
 0.1.7
 -----
 * `-fno-full-laziness` was added to work around changes in the GHC inliner.
diff --git a/concurrent-supply.cabal b/concurrent-supply.cabal
--- a/concurrent-supply.cabal
+++ b/concurrent-supply.cabal
@@ -1,6 +1,6 @@
 name:          concurrent-supply
 category:      Concurrency, Parallelism
-version:       0.1.7.1
+version:       0.1.8
 license:       BSD3
 cabal-version: >= 1.10
 license-file:  LICENSE
@@ -36,7 +36,7 @@
   build-depends:
     base     >= 4 && < 5,
     hashable >= 1.1 && < 1.3,
-    ghc-prim >= 0.2 && < 0.5
+    ghc-prim
 
 test-suite properties
   type: exitcode-stdio-1.0