diff --git a/package-lock.json b/package-lock.json
index d5673f4f36..91845757da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.0.0-semantically-released",
       "license": "ISC",
       "dependencies": {
-        "deepmerge": "4.2.2",
+        "deepmerge": "4.3.0",
         "js-yaml": "4.1.0",
         "probot": "12.3.0"
       },
@@ -4448,9 +4448,9 @@
       "dev": true
     },
     "node_modules/deepmerge": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
-      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.0.tgz",
+      "integrity": "sha512-z2wJZXrmeHdvYJp/Ux55wIjqo81G5Bp4c+oELTW+7ar6SogWHajt5a9gO3s3IDaGSAXjDk0vlQKN3rms8ab3og==",
       "engines": {
         "node": ">=0.10.0"
       }
@@ -19599,9 +19599,9 @@
       "dev": true
     },
     "deepmerge": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
-      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg=="
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.0.tgz",
+      "integrity": "sha512-z2wJZXrmeHdvYJp/Ux55wIjqo81G5Bp4c+oELTW+7ar6SogWHajt5a9gO3s3IDaGSAXjDk0vlQKN3rms8ab3og=="
     },
     "define-properties": {
       "version": "1.1.4",
diff --git a/package.json b/package.json
index 26b9fd87fb..0461a1eea8 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "author": "Brandon Keepers",
   "license": "ISC",
   "dependencies": {
-    "deepmerge": "4.2.2",
+    "deepmerge": "4.3.0",
     "js-yaml": "4.1.0",
     "probot": "12.3.0"
   },