diff --git a/package-lock.json b/package-lock.json
index 8f357dc..440e3d8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "dialogflow-api-utils",
-  "version": "0.5.1",
+  "version": "0.5.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -798,9 +798,9 @@
       }
     },
     "merge": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/merge/-/merge-1.2.1.tgz",
-      "integrity": "sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ=="
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/merge/-/merge-2.1.1.tgz",
+      "integrity": "sha512-jz+Cfrg9GWOZbQAnDQ4hlVnQky+341Yk5ru8bZSe6sIDTCIg8n9i/u7hSQGSVOF3C7lH6mGtqjkiT9G4wFLL0w=="
     },
     "merge-source-map": {
       "version": "1.1.0",
diff --git a/package.json b/package.json
index 55c1e76..ecdabd4 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,6 @@
     "nyc": "^14.1.1"
   },
   "dependencies": {
-    "merge": "^1.2.1"
+    "merge": "^2.1.1"
   }
 }