diff --git a/package.json b/package.json
index 9bbf6dc..8b2730c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "firebase": "^6.2.4",
     "i18n-js": "^3.1.0",
     "knuth-shuffle": "^1.0.8",
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "mocha": "^5.2.0",
     "moment": "^2.24.0",
     "react": "^16.12.0",
diff --git a/yarn.lock b/yarn.lock
index d23730b..d1088c4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5393,10 +5393,10 @@ lodash@4.17.11:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
-lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0:
-  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.15, lodash@^4.17.21, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^2.2.0:
   version "2.2.0"