diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index bf33595b54c8..789a771b3d7c 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -6,10 +6,10 @@ rec {
 
   firefox = common rec {
     pname = "firefox";
-    version = "54.0";
+    version = "54.0.1";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "0ff6960804e7f6d3e15faeb14b237fee45acae31b4652a6cc5cafa1a1b1eab3537616c3e8ea6d8f3109c87dcc8f86f0df3da2627903b80061c8a62fb11598ed9";
+      sha512 = "43607c2c0af995a21dc7f0f68b24b7e5bdb3faa5ee06025901c826bfe4d169256ea1c9eb5fcc604c4d6426ced53e80787c12fc07cda014eca09199ef3df783a2";
     };
 
     meta = {