diff --git a/pkgs/development/libraries/czmq/4.x.nix b/pkgs/development/libraries/czmq/4.x.nix
index 840fa34d6ae..67e005943fa 100644
--- a/pkgs/development/libraries/czmq/4.x.nix
+++ b/pkgs/development/libraries/czmq/4.x.nix
@@ -1,21 +1,14 @@
 { stdenv, fetchurl, fetchpatch, zeromq }:
 
 stdenv.mkDerivation rec {
-  version = "4.0.2";
+  version = "4.1.1";
   name = "czmq-${version}";
 
   src = fetchurl {
     url = "https://github.com/zeromq/czmq/releases/download/v${version}/${name}.tar.gz";
-    sha256 = "12gbh57xnz2v82x1g80gv4bwapmyzl00lbin5ix3swyac8i7m340";
+    sha256 = "1h5hrcsc30fcwb032vy5gxkq4j4vv1y4dj460rfs1hhxi0cz83zh";
   };
 
-  patches = [
-    (fetchpatch {
-      url = https://patch-diff.githubusercontent.com/raw/zeromq/czmq/pull/1618.patch;
-      sha256 = "1dssy7k0fni6djail8rz0lk8p777158jvrqhgn500i636gkxaxhp";
-    })
-  ];
-
   # Needs to be propagated for the .pc file to work
   propagatedBuildInputs = [ zeromq ];