diff --git a/test-closure-compiler-lazy-load/yarn.lock b/test-closure-compiler-lazy-load/yarn.lock
index 8ea65f9..cba8678 100644
--- a/test-closure-compiler-lazy-load/yarn.lock
+++ b/test-closure-compiler-lazy-load/yarn.lock
@@ -797,9 +797,9 @@ lodash.isfinite@^3.3.2:
   integrity sha1-+4m2WpqAKBgz8LdHizpRBPiY67M=
 
 lodash@^4.17.10, lodash@^4.17.15:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 micromatch@^4.0.2:
   version "4.0.2"