diff --git a/reanimate-svg.cabal b/reanimate-svg.cabal
index 60273a0..10c8137 100644
--- a/reanimate-svg.cabal
+++ b/reanimate-svg.cabal
@@ -28,7 +28,7 @@ Source-Repository head
 
 library
   hs-source-dirs: src
-  ghc-options: -Wall -fsimpl-tick-factor=300
+  ghc-options: -Wall -fsimpl-tick-factor=1000
   default-language: Haskell2010
   exposed-modules: Graphics.SvgTree
                  , Graphics.SvgTree.CssTypes
@@ -59,8 +59,8 @@ library
                , linear            >= 1.20
                , vector            >= 0.10
                , text              >= 1.1
-               , transformers      >= 0.3 && < 0.6
-               , mtl               >= 2.1 && < 2.3
+               , transformers      >= 0.3 && < 0.7
+               , mtl               >= 2.1 && < 2.4
                , lens              >= 4.6 && < 6
                , double-conversion >= 2.0.0.0 && < 3.0.0.0
                , hashable          >= 1.3.0.0