diff --git a/haskell98.cabal b/haskell98.cabal
index cb36185f68100df04b69828b0323618342d9388c..3b4a3c2ec61a9e134a01591676fe521beece1fe1 100644
--- a/haskell98.cabal
+++ b/haskell98.cabal
@@ -18,7 +18,7 @@ build-type:     Simple
 Cabal-Version: >= 1.6
 
 Library
-    build-depends:	base        >= 3   && < 5,
+    build-depends:	base        >= 4.5 && < 5,
                     directory   >= 1.1 && < 1.3,
                     old-time    >= 1.0 && < 1.2,
                     old-locale  >= 1.0 && < 1.1,