diff --git a/codex.cabal b/codex.cabal
--- a/codex.cabal
+++ b/codex.cabal
@@ -1,5 +1,5 @@
 name:                codex
-version:             0.2.0.0
+version:             0.2.0.1
 synopsis:            A ctags file generator for cabal project dependencies.
 description:         
   This tool download and cache the source code of packages in your local hackage,
@@ -45,8 +45,6 @@
     , text                >= 1.1.1.3    && < 1.2
     , transformers        >= 0.3.0.0    && < 0.5
     , zlib                >= 0.5.4.1    && < 0.6
-    -- transitive (but don't compile with 0.4)
-    , mono-traversable    >= 0.6        && < 0.7 
 
 executable codex
   default-language:  Haskell2010
@@ -67,6 +65,7 @@
     , hackage-db
     , MissingH
     , monad-loops         >= 0.4.2      && < 0.5
-    , transformers
+    -- Have to fix it otherwise `Backjump limit reached`
+    , transformers        == 0.3.0.0
     , yaml                >= 0.8.8.3    && < 0.9
-    , codex               == 0.2.0.0
+    , codex               == 0.2.0.1