diff --git a/pkgs/development/python-modules/irc/default.nix b/pkgs/development/python-modules/irc/default.nix
index 95dd5ba46178..5828ada7a61d 100644
--- a/pkgs/development/python-modules/irc/default.nix
+++ b/pkgs/development/python-modules/irc/default.nix
@@ -5,13 +5,13 @@
 
 buildPythonPackage rec {
   pname = "irc";
-  version = "17.1";
+  version = "18.0.0";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0c19aeee800dbad792179d70dff1281c06fec220323f8ec34150cd94357f383b";
+    sha256 = "1qg5996mzvhnkm74ksaa4d47fz5vrpw6hvxyaq9kf6y4cf1l76wq";
   };
 
   doCheck = false;