diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index 64ca912999a4f9..3e754a4e20aecf 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -63,10 +63,10 @@ rec {
 
   firefox-esr-68 = common rec {
     pname = "firefox-esr";
-    ffversion = "68.11.0esr";
+    ffversion = "68.12.0esr";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${ffversion}/source/firefox-${ffversion}.source.tar.xz";
-      sha512 = "0zg41jnbnpsa07xaizwfsmfav0cgxdqnh8i4yanxy49a45gigk895zqrx2if7pfsmdnj9zpwj9prj8cpnpsfhv6p62f3g2596aa9kvx";
+      sha512 = "169y4prlb4mi31jciz89kp35rpb1p2gxrk93qkwfzdk4imi9hk8mi2yvxknpr0rni3bn2x0zgrrc6ccr8swv5895sqvv1sc5r1056w3";
     };
 
     patches = [