diff --git a/.gitignore b/.gitignore
index 659a6f6..6952154 100644
--- a/.gitignore
+++ b/.gitignore
@@ -92,5 +92,7 @@ temp/
 frontend/node_modules/
 frontend/.angular/
 frontend/dist/
-# Keep .npmrc but ignore sensitive auth info
-# The active .npmrc will be generated from .npmrc.public or .npmrc.artifactory
+frontend/package-lock.json
+frontend/package-lock*.json
+# package-lock.json is machine-specific and depends on npm registry
+# Each environment will generate its own based on local .npmrc