diff --git a/nix/london/gsimmer.nix b/nix/london/gsimmer.nix
index 1933629..414b941 100644
--- a/nix/london/gsimmer.nix
+++ b/nix/london/gsimmer.nix
@@ -22,7 +22,7 @@
     in [
       (import (builtins.fetchTarball {
         url = "https://github.com/nix-community/emacs-overlay/archive/master.tar.gz";
-        sha256 = "1dhgkjxfdk6hj8d7pai69qxzdkmlgq5pr9728igw82bw9syg0kn3";
+        sha256 = "0sbb0hs753ypx3vbnljqfflxlz060cj8kjr9cw2hvvy6kccql7in";
       }))
       discordOverlay
     ];