diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.1.6.1
+
+* Bumped transformers version.
+* Bumped microlens version.
+
 # 0.1.6.0
 
 * Added `Lens.Micro.Mtl.Internal` (which exports zooming type classes)
diff --git a/microlens-mtl.cabal b/microlens-mtl.cabal
--- a/microlens-mtl.cabal
+++ b/microlens-mtl.cabal
@@ -1,5 +1,5 @@
 name:                microlens-mtl
-version:             0.1.6.0
+version:             0.1.6.1
 synopsis:            microlens support for Reader/Writer/State from mtl
 description:
   This package contains functions (like 'view' or '+=') which work on 'MonadReader', 'MonadWriter', and 'MonadState' from the mtl package.
@@ -27,9 +27,9 @@
                        Lens.Micro.Mtl.Internal
   -- other-extensions:    
   build-depends:       base >=4.5 && <5
-                     , microlens >=0.3.3 && <0.4
+                     , microlens >=0.4 && <0.5
                      , mtl >=2.0.1 && <2.3
-                     , transformers >=0.2 && <0.5
+                     , transformers >=0.2 && <0.6
                      , transformers-compat >=0.4 && <1
 
   ghc-options: