diff --git a/pkgs/by-name/te/termtekst/package.nix b/pkgs/by-name/te/termtekst/package.nix
index 0ae2be7536be..bcb0e3dd8378 100644
--- a/pkgs/by-name/te/termtekst/package.nix
+++ b/pkgs/by-name/te/termtekst/package.nix
@@ -8,25 +8,27 @@
 python3Packages.buildPythonApplication (finalAttrs: {
   pname = "termtekst";
   version = "1.0";
-  format = "setuptools";
+  pyproject = true;
+
+  build-system = with python3Packages; [ setuptools ];
 
   src = fetchFromGitHub {
     owner = "zevv";
     repo = "termtekst";
-    rev = "v${finalAttrs.version}";
-    sha256 = "1gm7j5d49a60wm7px82b76f610i8pl8ccz4r6qsz90z4mp3lyw9b";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-K3FPx63kg/Q1Npl8xhC9KIJgnDlLoH5P5cCoRFqRp74=";
   };
 
-  propagatedBuildInputs = with python3Packages; [
+  dependencies = with python3Packages; [
     ncurses
     requests
   ];
 
   patchPhase = ''
     substituteInPlace setup.py \
-      --replace "assert" "assert 1==1 #"
+      --replace-fail "assert" "assert 1==1 #"
     substituteInPlace src/tt \
-      --replace "locale.setlocale" "#locale.setlocale"
+      --replace-fail "locale.setlocale" "#locale.setlocale"
   '';
 
   meta = {