diff --git a/package.json b/package.json
index b445e2b..e3ab170 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "homepage": "https://github.com/carlo-colombo/telegram-resource#readme",
   "description": "",
   "devDependencies": {
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "mocha": "^3.2.0",
     "should": "^11.1.2",
     "sinon": "2.3.1"
diff --git a/yarn.lock b/yarn.lock
index 75460c9..1522e94 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -140,9 +140,9 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash@^4.17.4:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lolex@^1.6.0:
   version "1.6.0"