diff --git a/yesod-core/yesod-core.cabal b/yesod-core/yesod-core.cabal
index 3c7b09026..faea6bcd5 100644
--- a/yesod-core/yesod-core.cabal
+++ b/yesod-core/yesod-core.cabal
@@ -38,7 +38,7 @@ library
                    , conduit               >= 1.3
                    , conduit-extra
                    , containers            >= 0.2
-                   , cookie                >= 0.4.3    && < 0.5
+                   , cookie                >= 0.4.3    && < 0.6
                    , deepseq               >= 1.3
                    , entropy
                    , fast-logger           >= 2.2