diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,11 @@
+0.2.2.8 (28 May 2014)
+---------------------
+
+  - allow `diagrams-lib-1.2`, `diagrams-core-1.2`
+  - allow `cabal-1.20`
+  - allow `mtl-2.2`
+  - allow `lens-4.2`
+
 0.2.2.7 (16 April 2014)
 -----------------------
 
diff --git a/diagrams-haddock.cabal b/diagrams-haddock.cabal
--- a/diagrams-haddock.cabal
+++ b/diagrams-haddock.cabal
@@ -1,5 +1,5 @@
 name:                diagrams-haddock
-version:             0.2.2.7
+version:             0.2.2.8
 synopsis:            Preprocessor for embedding diagrams in Haddock documentation
 description:         diagrams-haddock is a tool for compiling embedded inline
                      diagrams code in Haddock documentation, for an
@@ -36,7 +36,7 @@
   build-depends:       base >= 4.4 && < 4.8,
                        filepath,
                        directory,
-                       mtl >= 2.0 && < 2.2,
+                       mtl >= 2.0 && < 2.3,
                        containers >= 0.4 && < 0.6,
                        split >= 0.2 && < 0.3,
                        bytestring >= 0.9 && < 0.11,
@@ -45,10 +45,10 @@
                        haskell-src-exts >= 1.14 && < 1.16,
                        blaze-svg >= 0.3 && < 0.4,
                        diagrams-builder >= 0.5 && < 0.6,
-                       diagrams-lib >= 0.6 && < 1.2,
-                       diagrams-svg >= 0.8.0.1 && < 1.1,
+                       diagrams-lib >= 0.6 && < 1.3,
+                       diagrams-svg >= 0.8.0.1 && < 1.2,
                        vector-space >= 0.8 && < 0.9,
-                       lens >= 3.8 && < 4.2,
+                       lens >= 3.8 && < 4.3,
                        cpphs >= 1.15,
                        cautious-file >= 1.0 && < 1.1,
                        uniplate >= 1.6 && < 1.7,
@@ -66,7 +66,7 @@
                        filepath,
                        diagrams-haddock,
                        cmdargs >= 0.8 && < 0.11,
-                       Cabal >= 1.14 && < 1.19,
+                       Cabal >= 1.14 && < 1.21,
                        cpphs >= 1.15
   hs-source-dirs:      tools
   default-language:    Haskell2010