diff --git a/geni-util.cabal b/geni-util.cabal
--- a/geni-util.cabal
+++ b/geni-util.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                geni-util
-version:             0.24.1.1
+version:             0.25.0
 synopsis:            Companion tools for use with the GenI surface realiser
 description:
   Tools included:
@@ -39,9 +39,9 @@
                ,      filepath
                ,      GenI         >= 0.24.2 && < 0.26
                ,      geniserver
-               ,      io-streams   < 1.2
-               ,      http-streams < 0.7
-               ,      json         < 0.8
+               ,      io-streams   == 1.4.*
+               ,      http-streams == 0.8.*
+               ,      json         < 0.10
                ,      text
                ,      blaze-html
                ,      blaze-markup