diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index c58f50cba7eb..688c9fe0e8ad 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -94,11 +94,11 @@
 
   firefox-esr-115 = buildMozillaMach rec {
     pname = "firefox-esr-115";
-    version = "115.6.0esr";
+    version = "115.7.0esr";
     applicationName = "Mozilla Firefox ESR";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "9fe23b5f715e35b788d9c8fefe6b7be8785789b4ae6f5649b05a54221934101c6e1b9580319145f9bcaebfbd00fcc33e97afb63f7d57ba102a6b02c874d324af";
+      sha512 = "d468d8ef117d76e0660c5359c3becf0502354c61bdaaeb4137d86f52b50143abec2ac4578af69afa5670700b57efff1c7323ca23e3339a9eaaa888dee7e8e922";
     };
 
     meta = {