diff --git a/terminus-core/yarn.lock b/terminus-core/yarn.lock
index bdd65aea..75bfe6e3 100644
--- a/terminus-core/yarn.lock
+++ b/terminus-core/yarn.lock
@@ -118,9 +118,9 @@ colorspace@1.1.x:
     text-hex "1.0.x"
 
 core-js@^3.1.2:
-  version "3.3.5"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.3.5.tgz#58d20f48a95a07304b62ff752742b82b56431ed8"
-  integrity sha512-0J3K+Par/ZydhKg8pEiTcK/9d65/nqJOzY62uMkjeBmt05fDOt/khUVjDdh8TpeIuGQDy1yLDDCjiWN/8pFIuw==
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.4.2.tgz#ee2b1a60b50388d8ddcda8cdb44a92c7a9ea76df"
+  integrity sha512-bUTfqFWtNKWp73oNIfRkqwYZJeNT3lstzZcAkhhiuvDraRSgOH1/+F9ZklbpR4zpdKuo4cpXN8tKP7s61yjX+g==
 
 core-util-is@~1.0.0:
   version "1.0.2"