diff --git a/themes/Hello/yarn.lock b/themes/Hello/yarn.lock
index 8d4fb6bb..56e91cbe 100644
--- a/themes/Hello/yarn.lock
+++ b/themes/Hello/yarn.lock
@@ -4274,9 +4274,9 @@ js-tokens@^3.0.2:
   integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
 
 js-yaml@^3.13.1:
-  version "3.14.2"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.2.tgz#77485ce1dd7f33c061fd1b16ecea23b55fcb04b0"
-  integrity sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==
+  version "3.15.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.15.1.tgz#24bc95028f361cdaaa84745b06a109c4486773c0"
+  integrity sha512-S99WuO3HlhO3XN41EtYUNl9zzXjoJx7QvmipxsJVxtCBT0YHEFy+iOJhjSvrmV12nYhWpZaM8lPHkJm0yUMbag==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"