diff --git a/websockets.cabal b/websockets.cabal
--- a/websockets.cabal
+++ b/websockets.cabal
@@ -1,5 +1,5 @@
 Name:    websockets
-Version: 0.7.2.0
+Version: 0.7.2.1
 
 Synopsis:
   A sensible and clean way to write WebSocket-capable servers in Haskell.
@@ -73,7 +73,7 @@
     blaze-builder            >= 0.3    && < 0.4,
     blaze-builder-enumerator >= 0.2    && < 0.3,
     bytestring               >= 0.9    && < 0.11,
-    case-insensitive         >= 0.3    && < 0.5,
+    case-insensitive         >= 0.3    && < 2.0,
     containers               >= 0.3    && < 0.6,
     enumerator               >= 0.4.13 && < 0.5,
     mtl                      >= 2.0    && < 2.2,