diff --git a/pkgs/by-name/gt/gtimelog/package.nix b/pkgs/by-name/gt/gtimelog/package.nix
index d37e2a60eb3f..f2abb96e3fea 100644
--- a/pkgs/by-name/gt/gtimelog/package.nix
+++ b/pkgs/by-name/gt/gtimelog/package.nix
@@ -4,16 +4,20 @@
 
 python3Packages.buildPythonApplication rec {
   pname = "gtimelog";
-  version = "unstable-2023-10-05";
-  format = "setuptools";
+  version = "0.12.0";
+  pyproject = true;
 
   src = fetchFromGitHub {
-    owner = pname;
-    repo = pname;
-    rev = "ba606cbe8eef0e3dc098c6ab3bcbe381bf7ef410";
-    hash = "sha256-+iBHfbUJtAtI/vcHj0Y8f9OxAp1SnhQyMqedVzSYPZQ=";
+    owner = "gtimelog";
+    repo = "gtimelog";
+    rev = "refs/tags/${version}";
+    hash = "sha256-NlKAgAnZWodXF4eybcNOSxexjhegRgQEWoAPd+KWzsw=";
   };
 
+  build-system = with python3Packages; [
+    setuptools-scm
+  ];
+
   nativeBuildInputs = [ wrapGAppsHook3 gobject-introspection ];
   buildInputs = [ glibcLocales gtk3 libsoup_3 libsecret ];
   propagatedBuildInputs = with python3Packages; [