diff --git a/pathwalk.cabal b/pathwalk.cabal
--- a/pathwalk.cabal
+++ b/pathwalk.cabal
@@ -1,5 +1,5 @@
 name:                pathwalk
-version:             0.3.1.0
+version:             0.3.1.1
 synopsis:            Path walking utilities for Haskell programs
 description:         Simple directory tree walking utilities.
 license:             MIT
@@ -39,7 +39,7 @@
       base >=3 && <5
     , directory >=1.2
     , filepath >=1.3
-    , transformers >=0.4
+    , transformers >=0.3.0.0
   hs-source-dirs: src
   default-language: Haskell2010
   ghc-options: -Wall