diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index c13c293fc806..3624ba0c3a6e 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -27,7 +27,7 @@ assert splitStaticOutput -> static;
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "zlib";
-  version = "1.3.1";
+  version = "1.3.2";
 
   src =
     let
@@ -40,7 +40,7 @@ stdenv.mkDerivation (finalAttrs: {
         # Stable archive path, but captcha can be encountered, causing hash mismatch.
         "https://www.zlib.net/fossils/zlib-${version}.tar.gz"
       ];
-      hash = "sha256-mpOyt9/ax3zrpaVYpYDnRmfdb+3kWFuR7vtg8Dty3yM=";
+      hash = "sha256-uzKaCizQJ00FUZ1hxmfAYuBpkNcuEl7i36jeZPARnRY=";
     };
 
   postPatch =