diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index 2e96df858c8..beb98c0655e 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -16,10 +16,10 @@ in
 rec {
   firefox = common rec {
     pname = "firefox";
-    ffversion = "72.0";
+    ffversion = "72.0.1";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${ffversion}/source/firefox-${ffversion}.source.tar.xz";
-      sha512 = "3ri375myxn040avylz3xdvbgyb0ixn0q1sszrsc4b9jp620j1732qixylw0lyfym5a0vkhpmihbp5kdjrmc4r26myjar5c9zjzisnd0";
+      sha512 = "37ryimi6yfpcha4c9mcv8gjk38kia1lr5xrj2lglwsr1jai7qxrcd8ljcry8bg87qfwwb9fa13prmn78f5pzpxr7jf8gnsbvr6adxld";
     };
 
     patches = [