diff --git a/nixos/modules/services/system/automatic-timezoned.nix b/nixos/modules/services/system/automatic-timezoned.nix
index 8934ed3a7ef2..7d3cd004a7ba 100644
--- a/nixos/modules/services/system/automatic-timezoned.nix
+++ b/nixos/modules/services/system/automatic-timezoned.nix
@@ -50,7 +50,7 @@ in
         serviceConfig = {
           Type = "exec";
           User = "automatic-timezoned";
-          ExecStart = "${cfg.package}/bin/automatic-timezoned --zoneinfo-path=${pkgs.tzdata}/share/zoneinfo/zone1970.tab";
+          ExecStart = "${cfg.package}/bin/automatic-timezoned";
         };
         wantedBy = [ "default.target" ];
       };
diff --git a/pkgs/tools/system/automatic-timezoned/default.nix b/pkgs/tools/system/automatic-timezoned/default.nix
index 9fe6eff850f4..d0f928f29291 100644
--- a/pkgs/tools/system/automatic-timezoned/default.nix
+++ b/pkgs/tools/system/automatic-timezoned/default.nix
@@ -5,16 +5,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "automatic-timezoned";
-  version = "1.0.148";
+  version = "2.0.0";
 
   src = fetchFromGitHub {
     owner = "maxbrunet";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-P4HSRqbFFgVc02HZf8UoTquseqHp2MUtTi5OZxomt6M=";
+    sha256 = "sha256-t7AozR3R+msppRnHTPRy3hd2SuCR9NZdg85+FLqSWEc=";
   };
 
-  cargoHash = "sha256-pn5/87/KfbpSQHsVsSh03miCh2SZjA/LxMWrUvjJySo=";
+  cargoHash = "sha256-d+SDI5keZ044LtS/A3K26moFVQngUfNNfr33PipTTg4=";
 
   meta = with lib; {
     description = "Automatically update system timezone based on location";