diff --git a/package.json b/package.json
index 798854e2c..0cb9abe85 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   },
   "dependencies": {
     "clone-deep": "^4.0.1",
-    "deepmerge": "^4.1.1",
+    "deepmerge": "^4.2.1",
     "get-port": "^5.0.0",
     "request": "^2.88.0",
     "request-promise-native": "^1.0.7"
diff --git a/yarn.lock b/yarn.lock
index 5cfa19886..defb47da1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3469,10 +3469,10 @@ deepmerge@^4.0.0:
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-4.0.0.tgz#3e3110ca29205f120d7cb064960a39c3d2087c09"
   integrity sha512-YZ1rOP5+kHor4hMAH+HRQnBQHg+wvS1un1hAOuIcxcBy0hzcUf6Jg2a1w65kpoOUnurOfZbERwjI1TfZxNjcww==
 
-deepmerge@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-4.1.1.tgz#ee0866e4019fe62c1276b9062d4c4803d9aea14c"
-  integrity sha512-+qO5WbNBKBaZez95TffdUDnGIo4+r5kmsX8aOb7PDHvXsTbghAmleuxjs6ytNaf5Eg4FGBXDS5vqO61TRi6BMg==
+deepmerge@^4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-4.2.1.tgz#018a3e5dfe82b95e35e36a9a29ba15ddb194e40f"
+  integrity sha512-32P7FIV6JKt0hPMFNlWFytzVGpppYHFKdnhFUEMXheWc8Lw4HnHEzJa5yxhaQedDAXv2SI6zD7+UbqnC5k9g9Q==
 
 define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"