diff --git a/pkgs/applications/networking/browsers/firefox/packages/firefox.nix b/pkgs/applications/networking/browsers/firefox/packages/firefox.nix
index d3e07cd16f76..9456a6e03256 100644
--- a/pkgs/applications/networking/browsers/firefox/packages/firefox.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages/firefox.nix
@@ -9,10 +9,10 @@
 
 buildMozillaMach rec {
   pname = "firefox";
-  version = "144.0.2";
+  version = "145.0";
   src = fetchurl {
     url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-    sha512 = "87eebabab2c85eb32b2d1161e520f56e271a4893c8cd4d8225fc7b498a9883496315854a758478fb4edd061674a9f7c0503e9b9f0eb4503b1f89203774d02f97";
+    sha512 = "7ba40d7de95d7b93278f1823ce460b45c6bfac01eda52bc5c28f23a6bc858bdcbf8b4b4dc359b853372fffbcff4e7f0b276fefe22c2d4a0fa303e8ce1d2629be";
   };
 
   meta = {