diff --git a/package.json b/package.json
index c81371d..ad955d9 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
   "homepage": "https://github.com/ardalann/2048-ai-node#readme",
   "dependencies": {
     "keypress": "^0.2.1",
-    "lodash": "^4.17.13"
+    "lodash": "^4.17.21"
   },
   "devDependencies": {
     "@babel/cli": "^7.2.3",
diff --git a/yarn.lock b/yarn.lock
index 580375b..5a2928d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3484,10 +3484,10 @@ lodash.upperfirst@4.3.1:
   resolved "https://registry.yarnpkg.com/lodash.upperfirst/-/lodash.upperfirst-4.3.1.tgz#1365edf431480481ef0d1c68957a5ed99d49f7ce"
   integrity sha1-E2Xt9DFIBIHvDRxolXpe2Z1J984=
 
-lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.5:
-  version "4.17.13"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.13.tgz#0bdc3a6adc873d2f4e0c4bac285df91b64fc7b93"
-  integrity sha512-vm3/XWXfWtRua0FkUyEHBZy8kCPjErNBT9fJx8Zvs+U6zjqPbTUOpkaoum3O5uiA8sm+yNMHXfYkTUHFoMxFNA==
+lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.21, lodash@^4.17.5:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^1.0.2:
   version "1.0.2"