diff --git a/package.json b/package.json
index 5e9edb1..720c510 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "dependencies": {
     "express": "^4.16.4",
     "mixin-deep": "^2.0.1",
-    "set-value": "^3.0.1",
+    "set-value": "^4.0.1",
     "socket.io": "^2.2.0"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 0c7fe99..ee670e6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1379,9 +1379,9 @@ set-value@^2.0.0, set-value@^2.0.1:
     is-plain-object "^2.0.3"
     split-string "^3.0.1"
 
-set-value@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/set-value/-/set-value-3.0.1.tgz#52c82af7653ba69eb1db92e81f5cdb32739b9e95"
+set-value@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-4.0.1.tgz#bc23522ade2d52314ec3b5d6fb140f5cd3a88acf"
   dependencies:
     is-plain-object "^2.0.4"