diff --git a/sample-api-js/yarn.lock b/sample-api-js/yarn.lock
old mode 100755
new mode 100644
index 428135d..35dee17
--- a/sample-api-js/yarn.lock
+++ b/sample-api-js/yarn.lock
@@ -3353,10 +3353,9 @@ typescript@3.3.*:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.4000.tgz#76b0f89cfdbf97827e1112d64f283f1151d6adf0"
 
 undefsafe@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.2.tgz#225f6b9e0337663e0d8e7cfd686fc2836ccace76"
-  dependencies:
-    debug "^2.2.0"
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.5.tgz#38733b9327bdcd226db889fb723a6efd162e6e2c"
+  integrity sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==
 
 underscore@~1.7.0:
   version "1.7.0"