diff --git a/package.json b/package.json
index 518dff4..809b4e6 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@collectable/core": "^5.0.1",
     "@collectable/red-black-tree": "^5.0.1",
     "@types/lodash": "4.14.116",
-    "lodash": "^4.0.0",
+    "lodash": "^4.17.21",
     "regexp-i18n": "^1.2.0"
   },
   "sideEffects": false,
diff --git a/yarn.lock b/yarn.lock
index c0e949f..a8b2181 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1679,9 +1679,10 @@ lodash.get@^4.4.2:
   version "4.4.2"
   resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
 
-lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.5:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+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@^2.1.0:
   version "2.2.0"