diff --git a/package.json b/package.json
index e926712..78886f8 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "google-closure-library": "^20180910.0.0",
     "google-protobuf": "^3.6.1",
     "joi": "^10.2.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.19",
     "md5": "^2.2.1",
     "moment": "^2.22.1",
     "moment-timezone": "^0.5.17",
diff --git a/yarn.lock b/yarn.lock
index 6768cc6..316a45a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5476,17 +5476,17 @@ lodash@4.17.5:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
-lodash@>=3.0.0, lodash@^4.16.2, lodash@^4.17.1, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+lodash@>=3.0.0, lodash@^4.16.2, lodash@^4.17.1, lodash@^4.17.11, lodash@^4.17.15, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@^2.4.1:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-2.4.2.tgz#fadd834b9683073da179b3eae6d9c0d15053f73e"
 
-lodash@^4.17.15, lodash@^4.17.19:
-  version "4.17.21"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+lodash@^4.17.19:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
 
 lodash@~4.11.1:
   version "4.11.2"