1 files changed, 4 insertions, 4 deletions
diff --git a/nixpkgs/pkgs/development/libraries/czmq/default.nix b/nixpkgs/pkgs/development/libraries/czmq/default.nix
index bdf4519f9bc3..bb8ecafbb347 100644
--- a/nixpkgs/pkgs/development/libraries/czmq/default.nix
+++ b/nixpkgs/pkgs/development/libraries/czmq/default.nix
@@ -1,18 +1,18 @@
-{ stdenv, fetchurl, zeromq }:
+{ lib, stdenv, fetchurl, zeromq }:
 
 stdenv.mkDerivation rec {
-  version = "4.2.0";
+  version = "4.2.1";
   pname = "czmq";
 
   src = fetchurl {
     url = "https://github.com/zeromq/czmq/releases/download/v${version}/${pname}-${version}.tar.gz";
-    sha256 = "1szciz62sk3fm4ga9qjpxz0n0lazvphm32km95bq92ncng12kayg";
+    sha256 = "sha256-XXIKIEwqWGRdb3ZDrxXVY6cS2tmMnTLB7ZEzd9qmrDk=";
   };
 
   # Needs to be propagated for the .pc file to work
   propagatedBuildInputs = [ zeromq ];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "http://czmq.zeromq.org/";
     description = "High-level C Binding for ZeroMQ";
     license = licenses.mpl20;