diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index d8a236185809..a54142b2a80d 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -3,10 +3,10 @@
 rec {
   firefox = buildMozillaMach rec {
     pname = "firefox";
-    version = "111.0";
+    version = "111.0.1";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "cdb300fdbb2b60068b0fc10a18df587b417e484901d36f52dd174d320d3440a42b02ea000f325c5781fd8853a5171b1a5184562fb535ece90619e4c64d46bb82";
+      sha512 = "e7d248b845cb524efc28818e0a0cad06ba5acac30219886191b702b61314388d10a1690c6d704b0a70d2bc2c4b1f04ed02350dcb9dce9c56503d2af3baefe4d3";
     };
 
     meta = {