diff --git a/pkgs/by-name/zl/zlib-ng/package.nix b/pkgs/by-name/zl/zlib-ng/package.nix
index e4b51d4c8cf09..3f5e1c670c7ce 100644
--- a/pkgs/by-name/zl/zlib-ng/package.nix
+++ b/pkgs/by-name/zl/zlib-ng/package.nix
@@ -10,13 +10,13 @@
 
 stdenv.mkDerivation rec {
   pname = "zlib-ng";
-  version = "2.2.4";
+  version = "2.2.5";
 
   src = fetchFromGitHub {
     owner = "zlib-ng";
     repo = "zlib-ng";
     rev = version;
-    hash = "sha256-Khmrhp5qy4vvoQe4WgoogpjWrgcUB/q8zZeqIydthYg=";
+    hash = "sha256-c2RYqHi3hj/ViBzJcYWoNib27GAbq/B1SJUfvG7CPG4=";
   };
 
   outputs = [