diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 Changes
 =======
 
+Version 0.1.2.1
+---------------
+
+Relax the lower bound on `base`
+
 Version 0.1.2
 -------------
 
diff --git a/data-lens-light.cabal b/data-lens-light.cabal
--- a/data-lens-light.cabal
+++ b/data-lens-light.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                data-lens-light
-version:             0.1.2
+version:             0.1.2.1
 synopsis:            Simple lenses, minimum dependencies
 description:         See <https://github.com/feuerbach/data-lens-light/blob/master/README.md>
 homepage:            https://github.com/feuerbach/data-lens-light
@@ -11,7 +11,7 @@
 author:              Roman Cheplyaka
 maintainer:          roma@ro-che.info
 -- copyright:           
-category:            Data
+category:            Data, Lenses
 build-type:          Simple
 extra-source-files:
   README.md
@@ -28,7 +28,7 @@
     Data.Lens.Light.State
   -- other-extensions:    
   build-depends:
-    base >= 4.5 && < 5,
+    base == 4.*,
     template-haskell,
     mtl >= 2.1
   hs-source-dirs:      src