diff --git a/services/mailserver.nix b/services/mailserver.nix
index 4c08215..e71caa8 100644
--- a/services/mailserver.nix
+++ b/services/mailserver.nix
@@ -4,7 +4,7 @@
     (fetchFromGitLab {
       owner = "simple-nixos-webserver";
       repo = "nixos-mailserver";
-      tag = "v2.3.0";
+      rev = "c8ec4d5e432f5df4838eacd39c11828d23ce66ec";
       hash = ""; # TODO: Fill this hash
     })
   ];