diff --git a/package.json b/package.json
index 625a72d..6a99f28 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "airtable": "^0.8.1",
     "buefy": "^0.8.8",
     "bulmaswatch": "^0.7.5",
-    "core-js": "^3.4.3",
+    "core-js": "^3.11.3",
     "epic-spinners": "^1.1.0",
     "marked": "^0.8.2",
     "vue": "^2.6.10",
diff --git a/yarn.lock b/yarn.lock
index c19174a..1ad33e0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2456,10 +2456,10 @@ core-js-compat@^3.1.1, core-js-compat@^3.4.3:
     browserslist "^4.7.3"
     semver "^6.3.0"
 
-core-js@^3.4.3:
-  version "3.4.5"
-  resolved "https://registry.npm.taobao.org/core-js/download/core-js-3.4.5.tgz?cache=0&sync_timestamp=1574894721044&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fcore-js%2Fdownload%2Fcore-js-3.4.5.tgz#3dda65611d95699b5eb7742ea451ea052d37aa65"
-  integrity sha1-PdplYR2VaZtet3QupFHqBS03qmU=
+core-js@^3.11.3, core-js@^3.4.3:
+  version "3.11.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.11.3.tgz#2835b1f4d10f6d0400bf820cfe6fe64ad067dd3f"
+  integrity sha512-DFEW9BllWw781Op5KdYGtXfj3s9Cmykzt16bY6elaVuqXHCUwF/5pv0H3IJ7/I3BGjK7OeU+GrjD1ChCkBJPuA==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"