diff --git a/pkgs/applications/networking/browsers/firefox/default.nix b/pkgs/applications/networking/browsers/firefox/default.nix
index 083d765e4cc1..d12c3722e403 100644
--- a/pkgs/applications/networking/browsers/firefox/default.nix
+++ b/pkgs/applications/networking/browsers/firefox/default.nix
@@ -147,8 +147,8 @@ in {
 
   firefox-esr-unwrapped = common {
     pname = "firefox-esr";
-    version = "45.3.0esr";
-    sha512 = "ee618aec579625122c3e511a7ac83ac4db9718f5695b6fe6250717602178bae9bb7e5ebe8764f4d33ecf44d3db13abfed0d24c1ec71e64a1087fb6d5a579b0c0";
+    version = "45.4.0esr";
+    sha512 = "2955e02f829a10186a8b22320fb97d4b0fc2b45721fcffa6295653fd760d516ae72b5656547685ba1e0699b381e28044996d9ee12a8738842b4e6b8acd296715";
   };
 
 }