diff --git a/package.json b/package.json
index d6f7f17..a721597 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "@angular/platform-browser": "^6.0.3",
     "@angular/platform-browser-dynamic": "^6.0.3",
     "@angular/router": "^6.0.3",
-    "core-js": "^2.5.4",
+    "core-js": "^3.15.2",
     "font-awesome": "4.7",
     "materialize-css": "^0.100.2",
     "rxjs": "^6.0.0",
diff --git a/yarn.lock b/yarn.lock
index dde9ef2..e227e15 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1315,7 +1315,7 @@ compressible@~2.0.13:
 
 compression@^1.5.2:
   version "1.7.2"
-  resolved "http://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
+  resolved "https://registry.npmjs.org/compression/-/compression-1.7.2.tgz#aaffbcd6aaf854b44ebb280353d5ad1651f59a69"
   dependencies:
     accepts "~1.3.4"
     bytes "3.0.0"
@@ -1413,10 +1413,14 @@ copy-webpack-plugin@^4.5.1:
     p-limit "^1.0.0"
     serialize-javascript "^1.4.0"
 
-core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.4:
+core-js@^2.2.0, core-js@^2.4.0:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
 
+core-js@^3.15.2:
+  version "3.15.2"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.15.2.tgz#740660d2ff55ef34ce664d7e2455119c5bdd3d61"
+
 core-js@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.3.0.tgz#fab83fbb0b2d8dc85fa636c4b9d34c75420c6d65"