diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index b94a33bfa871..d0d3f843152b 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -33,10 +33,10 @@ rec {
 
   firefox-esr-68 = common rec {
     pname = "firefox-esr";
-    ffversion = "68.5.0esr";
+    ffversion = "68.6.0esr";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${ffversion}/source/firefox-${ffversion}.source.tar.xz";
-      sha512 = "39i05r7r4rh2jvc8v4m2s2i6d33qaa075a1lc8m9gx7s3rw8yxja2c42cv5hq1imr9zc4dldbk88paz6lv1w8rhncm0dkxw8z6lxkqa";
+      sha512 = "2ipajk86s7hfz7qky9lh24i5fgzgpv9hl12invr1rr6jhpp0h6gbb44ffim0z9lmcj49cr01cgqis0swhb4vph8dl1jvgfq9rjmsml4";
     };
 
     patches = [