diff --git a/package.json b/package.json
index c142b3b..65315ef 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "typescript": "^3.9.6"
   },
   "dependencies": {
-    "lodash": "^4.17.19",
+    "lodash": "^4.17.21",
     "seedrandom": "^3.0.5"
   },
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 54049cc..56f63f1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1085,10 +1085,10 @@ locate-path@^5.0.0:
   dependencies:
     p-locate "^4.1.0"
 
-lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19:
-  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
+lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@3.0.0:
   version "3.0.0"