diff --git a/pkgs/development/libraries/zlib-ng/default.nix b/pkgs/development/libraries/zlib-ng/default.nix
index 7ba07cd92407..4323d8adda05 100644
--- a/pkgs/development/libraries/zlib-ng/default.nix
+++ b/pkgs/development/libraries/zlib-ng/default.nix
@@ -5,13 +5,13 @@
 
 stdenv.mkDerivation rec {
   pname = "zlib-ng";
-  version = "2.0.2";
+  version = "2.0.5";
 
   src = fetchFromGitHub {
     owner = "zlib-ng";
     repo = "zlib-ng";
     rev = version;
-    sha256 = "1cl6asrav2512j7p02zcpibywjljws0m7aazvb3q2r9qiyvyswji";
+    sha256 = "sha256-KvV1XtPoagqPmijdr20eejsXWG7PRjMUwGPLXazqUHM=";
   };
 
   outputs = [ "out" "dev" "bin" ];