diff --git a/wai-handler-launch.cabal b/wai-handler-launch.cabal
--- a/wai-handler-launch.cabal
+++ b/wai-handler-launch.cabal
@@ -1,5 +1,5 @@
 Name:                wai-handler-launch
-Version:             0.0.3
+Version:             0.0.4
 Synopsis:            Launch a web app in the default browser.
 Description:         This handles cross-platform launching and inserts Javascript code to ping the server. When the server no longer receives pings, it shuts down.
 License:             BSD3
@@ -12,16 +12,17 @@
 
 Library
     Exposed-modules: Network.Wai.Handler.Launch
-    build-depends: base                    >= 4      && < 5
-                 , wai                     >= 0.4    && < 0.5
-                 , warp                    >= 0.4    && < 0.5
-                 , http-types              >= 0.6    && < 0.7
-                 , transformers            >= 0.2    && < 0.3
-                 , bytestring              >= 0.9    && < 1
-                 , blaze-builder           >= 0.2    && < 0.4
-                 , enumerator              >= 0.4    && < 0.5
-                 , blaze-builder-enumerator>= 0.2    && < 0.3
-                 , zlib-enum               >= 0.2    && < 0.3
+    build-depends:   base                    >= 4      && < 5
+                   , wai                     >= 0.4    && < 0.5
+                   , warp                    >= 0.4    && < 0.5
+                   , http-types              >= 0.6    && < 0.7
+                   , transformers          >= 0.2.2         && < 0.3
+                   , bytestring                >= 0.9.1.4  && < 0.10
+                   , blaze-builder             >= 0.2.1.4  && < 0.4
+                   , enumerator             >= 0.4.8    && < 0.5
+                   , blaze-builder-enumerator >= 0.2    && < 0.3
+                   , zlib-enum >= 0.2.1 && < 0.3
+
     if os(windows)
         c-sources: windows.c
         cpp-options: -DWINDOWS