diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index e3f3e15d7c37..7a5c91130f4d 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -7,10 +7,10 @@ in
 rec {
   firefox = common rec {
     pname = "firefox";
-    version = "97.0";
+    version = "97.0.1";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "a913695a42cb06ee9bda2a20e65cc573e40ca93e9f75b7ee0a43ebd1935b371e7e80d5fc8d5f126ad0712ab848635a8624bbeed43807e5c179537aa32c884186";
+      sha512 = "8620aace77167593aab5acd230860eb3e67eeddc49c0aad0491b5dc20bd0ddb6089dbb8975aed241426f57b2ad772238b04d03b95390175f580cbd80bb6d5f6c";
     };
 
     meta = {