diff --git a/Hbro/Boot.hs b/Hbro/Boot.hs
--- a/Hbro/Boot.hs
+++ b/Hbro/Boot.hs
@@ -52,8 +52,8 @@
 import System.Glib.Signals
 import System.Posix.Files
 import System.Posix.Signals
-import System.ZMQ3 (Rep(..))
-import qualified System.ZMQ3 as ZMQ
+import System.ZMQ4 (Rep(..))
+import qualified System.ZMQ4 as ZMQ
 -- }}}
 
 
diff --git a/Hbro/IPC.hs b/Hbro/IPC.hs
--- a/Hbro/IPC.hs
+++ b/Hbro/IPC.hs
@@ -22,8 +22,8 @@
 
 -- import System.Posix.Types
 -- import System.Process
-import System.ZMQ3 hiding(close, context, init, message, receive, send, socket)
-import qualified System.ZMQ3 as ZMQ (receive, send)
+import System.ZMQ4 hiding(close, context, init, message, receive, send, socket)
+import qualified System.ZMQ4 as ZMQ (receive, send)
 -- }}}
 
 -- {{{ Types
diff --git a/hbro.cabal b/hbro.cabal
--- a/hbro.cabal
+++ b/hbro.cabal
@@ -1,5 +1,5 @@
 Name:                hbro
-Version:             1.1.2.1
+Version:             1.1.2.2
 Synopsis:            Minimal KISS compliant browser
 -- Description:
 Homepage:            http://projects.haskell.org/hbro/
@@ -46,7 +46,7 @@
         unix,
         webkit,
         xdg-basedir,
-        zeromq3-haskell >= 0.2
+        zeromq4-haskell
     Exposed-modules:
         Hbro,
         Hbro.Boot,