diff --git a/protractor4/yarn.lock b/protractor4/yarn.lock
index d825d0f..00d1241 100644
--- a/protractor4/yarn.lock
+++ b/protractor4/yarn.lock
@@ -5288,8 +5288,8 @@ tough-cookie@~2.3.0:
     punycode "^1.4.1"
 
 tree-kill@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/tree-kill/-/tree-kill-1.1.0.tgz#c963dcf03722892ec59cba569e940b71954d1729"
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/tree-kill/-/tree-kill-1.2.2.tgz#4ca09a9092c88b73a7cdc5e8a01b507b0790a0cc"
 
 ts-loader@^1.3.3:
   version "1.3.3"