diff --git a/ert.cabal b/ert.cabal
--- a/ert.cabal
+++ b/ert.cabal
@@ -2,7 +2,7 @@
 -- see http://haskell.org/cabal/users-guide/
 
 name:                ert
-version:             0.0.2.0
+version:             0.0.2.1
 synopsis:            Easy Runtime Templates
 description:         EJS-like template engine for Haskell.
 license:             GPL-3
@@ -45,7 +45,7 @@
   default-extensions:  OverloadedStrings
                        CPP
   -- other-extensions:    
-  build-depends:       base >= 4.6 && < 4.7
+  build-depends:       base >= 4.6 && < 5
                      , bytestring >= 0.10.0.2
                      , text >= 0.11.3.1
                      , vector >= 0.10.0.1 && < 0.11
@@ -58,10 +58,8 @@
     cpp-options:       -DWITH_REGEX
 
   if flag(dev)
-    ghc-options:       -Wall -O0
+    ghc-options:       -Wall
     cpp-options:       -DWITH_DEBUG
-  else
-    ghc-options:       -O2
 
   default-language:    Haskell2010
 
@@ -83,9 +81,7 @@
     cpp-options:       -DWITH_YAML
 
   if flag(dev)
-    ghc-options:       -Wall -O0
+    ghc-options:       -Wall
     cpp-options:       -DWITH_DEBUG
-  else
-    ghc-options:       -O2
   
   default-language:    Haskell2010