diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 tellbot CHANGELOG
 =================
 
+### 0.6.0.12
+
+- Support for transformers-0.6 and bifunctors-5.3.
+
+### 0.6.0.11
+
 ### 0.6.0.10
 
 - Fixed exception reading stream (UTF-8 fail).
diff --git a/tellbot.cabal b/tellbot.cabal
--- a/tellbot.cabal
+++ b/tellbot.cabal
@@ -1,5 +1,5 @@
 name:                tellbot
-version:             0.6.0.11
+version:             0.6.0.12
 synopsis:            IRC tellbot
 description:         An IRC bot that can be used to create queuing message.
                      It also offers a simple administration IRC bot interface.
@@ -27,7 +27,7 @@
   default-extensions:  FlexibleInstances
 
   build-depends:       base         >= 4.5  && < 5
-                     , bifunctors   >= 4.1  && < 5.3
+                     , bifunctors   >= 4.1  && < 5.4
                      , bytestring   >= 0.10 && < 0.11
                      , containers   >= 0.4  && < 0.6
                      , http-conduit >= 2.1  && < 2.2
@@ -38,7 +38,7 @@
                      , text         >= 1.2  && < 1.3
                      , tagsoup      >= 0.13 && < 0.14
                      , time         >= 1.4  && < 1.6
-                     , transformers >= 0.3  && < 0.5
+                     , transformers >= 0.3  && < 0.6
 
   hs-source-dirs:      src