diff --git a/Hipmunk.cabal b/Hipmunk.cabal
--- a/Hipmunk.cabal
+++ b/Hipmunk.cabal
@@ -3,7 +3,7 @@
 Tested-With:   GHC
 Category:      Physics, Game
 Name:          Hipmunk
-Version:       5.2.0.15
+Version:       5.2.0.16
 Stability:     provisional
 License:       OtherLicense
 License-File:  LICENSE
@@ -20,6 +20,10 @@
       Please see <http://hackage.haskell.org/package/HipmunkPlayground>
       for a demonstration of this library.
       .
+      Version 5.2.0.16:
+      .
+      * Bump dependency on transformers. (Thanks, Alfredo Di Napoli!)
+      .
       Version 5.2.0.15:
       .
       * Fix for working with GHC 7.6 again.
@@ -216,7 +220,7 @@
     Build-Depends: base >= 3 && < 5,
                    array >= 0.1 && < 0.6,
                    containers >= 0.1 && < 0.6,
-                   transformers >= 0.2 && < 0.4,
+                   transformers >= 0.2 && < 0.5,
                    StateVar >= 1.0 && < 1.1
   else
     Build-Depends: base >= 2 && < 3,