diff --git a/snap.cabal b/snap.cabal
--- a/snap.cabal
+++ b/snap.cabal
@@ -1,5 +1,5 @@
 name:           snap
-version:        0.5.5
+version:        0.5.5.1
 synopsis:       Snap: A Haskell Web Framework: project starter executable and glue code library
 description:    Snap Framework project starter executable and glue code library
 license:        BSD3
@@ -95,7 +95,7 @@
 
   build-depends:
     attoparsec       >= 0.8.0.2 && < 0.10,
-    base             >= 4.3 && < 5,
+    base             >= 4   && < 5,
     bytestring,
     bytestring-nums,
     cereal           >= 0.3 && < 0.4,