diff --git a/package.json b/package.json
index 141e7a8..d534009 100644
--- a/package.json
+++ b/package.json
@@ -45,6 +45,6 @@
     "rollup-plugin-terser": "5.3.0"
   },
   "dependencies": {
-    "lodash": "4.17.15"
+    "lodash": "4.17.21"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 13fdfd7..875aacd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -989,10 +989,10 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash@4.17.15, lodash@^4.17.13:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+lodash@4.17.21, lodash@^4.17.13:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -1190,7 +1190,7 @@ rollup-pluginutils@^2.8.1, rollup-pluginutils@^2.8.2:
   dependencies:
     estree-walker "^0.6.1"
 
-rollup@^2.1.0:
+rollup@2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.1.0.tgz#552e248e397a06b9c6db878c0564ca4ee06729c9"
   integrity sha512-gfE1455AEazVVTJoeQtcOq/U6GSxwoj4XPSWVsuWmgIxj7sBQNLDOSA82PbdMe+cP8ql8fR1jogPFe8Wg8g4SQ==