diff --git a/runtime/prompty/.gitignore b/runtime/prompty/.gitignore
index dd27fe5..bfa269f 100644
--- a/runtime/prompty/.gitignore
+++ b/runtime/prompty/.gitignore
@@ -160,6 +160,7 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+pdm.lock
 
 
 # trace