diff --git a/stable-memo.cabal b/stable-memo.cabal
--- a/stable-memo.cabal
+++ b/stable-memo.cabal
@@ -1,5 +1,5 @@
 name:                stable-memo
-version:             0.3.0
+version:             0.3.1
 synopsis:            Memoization based on argument identity
 license:             MIT
 license-file:        LICENSE
@@ -66,8 +66,7 @@
 library
   build-depends:       base >=4.6 && <5,
                        hashtables >=1.0 && <1.3,
-                       tagged >=0.4 && <0.8,
-                       ghc-prim >=0.3 && < 0.4
+                       ghc-prim >=0.3 && < 0.5
   default-language:    Haskell2010
   exposed-modules:     Data.StableMemo, Data.StableMemo.Weak
   other-extensions:    BangPatterns,
@@ -85,4 +84,4 @@
 source-repository this
   type:     darcs
   location: http://patch-tag.com/r/jmcarthur/stable-memo
-  tag:      v0.3.0
+  tag:      v0.3.1