diff --git a/glue-example.cabal b/glue-example.cabal
--- a/glue-example.cabal
+++ b/glue-example.cabal
@@ -1,5 +1,5 @@
 name:                   glue-example
-version:                0.4.8
+version:                0.4.9
 synopsis:               Make better services and clients.
 description:            Examples of the use of glue library functionality.
 license:                BSD3
@@ -18,10 +18,10 @@
   main-is:              Main.hs
   hs-source-dirs:       src
   other-modules:        Glue.Example.BatcherExample
-  build-depends:        base ==4.*,
-                        glue-common == 0.4.8,
-                        glue-core == 0.4.8,
-                        glue-ekg == 0.4.8,
+  build-depends:        base >=4.6 && <4.10,
+                        glue-common == 0.4.9,
+                        glue-core == 0.4.9,
+                        glue-ekg == 0.4.9,
                         transformers,
                         transformers-base,
                         lifted-base,