diff --git a/pkgs/applications/misc/yubioath-flutter/helper.nix b/pkgs/applications/misc/yubioath-flutter/helper.nix
index 77dd379b6dc8..ca0bf4472a4c 100644
--- a/pkgs/applications/misc/yubioath-flutter/helper.nix
+++ b/pkgs/applications/misc/yubioath-flutter/helper.nix
@@ -24,15 +24,12 @@ buildPythonApplication {
     python3.pkgs.pythonRelaxDepsHook
   ];
 
-  pythonRelaxDeps = [ "yubikey-manager" ];
+  pythonRelaxDeps = true;
 
   postPatch = ''
-    sed -i \
-      -e 's,zxing-cpp = .*,zxing-cpp = "*",g' \
-      -e 's,mss = .*,mss = "*",g' \
-      -e 's,yubikey-manager = .*,yubikey-manager = "*",g' \
-      -e 's,Pillow = .*,Pillow = "*",g' \
-      pyproject.toml
+    substituteInPlace pyproject.toml \
+      --replace "authenticator-helper" "yubioath-flutter-helper" \
+      --replace "0.1.0" "${version}"
   '';
 
   postInstall = ''