diff --git a/uri-conduit.cabal b/uri-conduit.cabal
--- a/uri-conduit.cabal
+++ b/uri-conduit.cabal
@@ -1,5 +1,5 @@
 Name:                uri-conduit
-Version:             0.4.0
+Version:             0.4.0.1
 Synopsis:            Read and write URIs
 Homepage:            http://github.com/snoyberg/xml
 License:             BSD3
@@ -20,7 +20,7 @@
                      , transformers             >= 0.2        && < 0.4
                      , bytestring               >= 0.9        && < 0.10
                      , network                  >= 2.2        && < 2.4
-                     , containers               >= 0.2        && < 0.5
+                     , containers               >= 0.2
                      , failure                  >= 0.1        && < 0.3
                      , monad-control            >= 0.3        && < 0.4
                      , system-filepath          >= 0.4.3      && < 0.5