diff --git a/03-let-const/yarn.lock b/03-let-const/yarn.lock
old mode 100755
new mode 100644
index 76f47184..35c43b48
--- a/03-let-const/yarn.lock
+++ b/03-let-const/yarn.lock
@@ -2484,8 +2484,8 @@ qs@6.5.1:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
 qs@~6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.1.tgz#2bad97710a5b661c366b378b1e3a44a592ff45e6"
 
 querystring-es3@^0.2.0:
   version "0.2.1"