diff --git a/pkgs/os-specific/linux/nmon/default.nix b/pkgs/os-specific/linux/nmon/default.nix
index cb6dd4ab946c..9de18401d7b2 100644
--- a/pkgs/os-specific/linux/nmon/default.nix
+++ b/pkgs/os-specific/linux/nmon/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "nmon";
-  version = "16k";
+  version = "16m";
 
   src = fetchurl {
     url = "mirror://sourceforge/nmon/lmon${version}.c";
-    sha256 = "17nbxrnl7kqiaaxn2hwyi65gphbl3wybbyp9vri2q5ifdis3ssib";
+    sha256 = "1hazgrq3m01dzv05639yis1mypcp0jf167n9gqwd3wgxzm2lvv9b";
   };
 
   buildInputs = [ ncurses ];