diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index d6ec46a37fba..efddcae187a5 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -5,10 +5,10 @@
 {
   firefox = buildMozillaMach rec {
     pname = "firefox";
-    version = "131.0";
+    version = "131.0.2";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "324cbaadff4d19a18d56ca01ae7212ac8362e3f5933f3017a19b64c35d58606ace8bba3672790ecb48d4a849619cdc95701440701725e8eb2859d55f1e8d8e3c";
+      sha512 = "fb1a1179a8c62de975c93e1ac6f058cb5492e955bbb7ac2d4b83cdd14ba17bdb2450078bd6f626124b14542f3fda9514bea476aaa34ff4f5a2bee6b1625ec963";
     };
 
     extraPatches = [