diff --git a/CHANGES.txt b/CHANGES.txt
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,7 @@
 Changelog for Safe
 
+0.3.13
+    #20, require GHC 7.4 or above
 0.3.12
     #19, add Safe.Partial exposing a Partial typeclass
     #19, add support for GHC call stacks
diff --git a/safe.cabal b/safe.cabal
--- a/safe.cabal
+++ b/safe.cabal
@@ -1,7 +1,7 @@
 cabal-version:  >= 1.18
 build-type:     Simple
 name:           safe
-version:        0.3.12
+version:        0.3.13
 license:        BSD3
 license-file:   LICENSE
 category:       Unclassified
@@ -44,7 +44,7 @@
 library
     default-language: Haskell2010
     build-depends:
-        base < 5
+        base >= 4.5 && < 5
 
     exposed-modules:
         Safe