diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,8 @@
+* 0.2.0.6: 3 April 2015
+
+  - Allow base-4.8
+  - Allow monoid-extras-0.4
+
 * 0.2.0.5: 04 Dec 2014
 
   - Allow semigroups-0.16
diff --git a/dual-tree.cabal b/dual-tree.cabal
--- a/dual-tree.cabal
+++ b/dual-tree.cabal
@@ -1,5 +1,5 @@
 name:                dual-tree
-version:             0.2.0.5
+version:             0.2.0.6
 synopsis:            Rose trees with cached and accumulating monoidal annotations
 description:         Rose (n-ary) trees with both upwards- (/i.e./
                      cached) and downwards-traveling (/i.e./
@@ -40,10 +40,10 @@
   default-language:  Haskell2010
   exposed-modules:   Data.Tree.DUAL
                      Data.Tree.DUAL.Internal
-  build-depends:     base >= 4.3 && < 4.8,
+  build-depends:     base >= 4.3 && < 4.9,
                      semigroups >= 0.8 && < 0.17,
                      newtype >= 0.2 && < 0.3,
-                     monoid-extras >= 0.2 && < 0.4
+                     monoid-extras >= 0.2 && < 0.5
   hs-source-dirs:    src
   other-extensions:  GeneralizedNewtypeDeriving,
                      MultiParamTypeClasses,