diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,6 @@
+0.7.3
+* Widen ghc-prim dependency for GHC 8
+
 0.7.2
 * Fix premature integer overflow error thanks to Mitsutoshi Aoe
 
diff --git a/retry.cabal b/retry.cabal
--- a/retry.cabal
+++ b/retry.cabal
@@ -14,7 +14,7 @@
         case we should hang back for a bit and retry the query instead
         of simply raising an exception.
 
-version:             0.7.2
+version:             0.7.3
 synopsis:            Retry combinators for monadic actions that may fail
 license:             BSD3
 license-file:        LICENSE
@@ -35,7 +35,7 @@
       base                 >= 4.6 && < 5
     , data-default-class
     , exceptions           >= 0.5 && < 0.9
-    , ghc-prim             < 0.5
+    , ghc-prim             < 0.6
     , random               >= 1 && < 1.2
     , transformers         < 0.6
   hs-source-dirs:      src