diff --git a/pkgs/tools/security/munge/default.nix b/pkgs/tools/security/munge/default.nix
index f04f67c7a434..2e83c691dc7f 100644
--- a/pkgs/tools/security/munge/default.nix
+++ b/pkgs/tools/security/munge/default.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchFromGitHub, autoreconfHook, gawk, gnused, libgcrypt, zlib, bzip2 }:
 
 stdenv.mkDerivation rec {
-  name = "munge-0.5.12";
+  name = "munge-0.5.13";
 
   src = fetchFromGitHub {
     owner = "dun";
     repo = "munge";
     rev = "${name}";
-    sha256 = "1wvkc63bqclpm5xmp3rn199x3jqd99255yicyydgz83cixp7wdbh";
+    sha256 = "1c4ff3d8ad3inbliszr4slym3b4cn19bn6mxm13mzy20jyi2rm70";
   };
 
   nativeBuildInputs = [ autoreconfHook gawk gnused ];