diff --git a/package.json b/package.json
index dac6d4c5a99a87edf8ce13bdf6558c995c6b10e3..e3ee73e584fa4627487039b9cec7ad956f7a50e6 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "commander": "2.20.0",
     "conventional-commits-detector": "1.0.2",
     "convert-hrtime": "3.0.0",
-    "deepmerge": "3.3.0",
+    "deepmerge": "4.0.0",
     "delay": "4.3.0",
     "detect-indent": "6.0.0",
     "email-addresses": "3.0.3",
diff --git a/yarn.lock b/yarn.lock
index d142cde37f64f4218759f7085a831bc22992f747..0f36e2780633844b90005dd70b0a9249e1de61d3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2710,11 +2710,6 @@ deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
 
-deepmerge@3.3.0:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-3.3.0.tgz#d3c47fd6f3a93d517b14426b0628a17b0125f5f7"
-  integrity sha512-GRQOafGHwMHpjPx9iCvTgpu9NojZ49q794EEL94JVEw6VaeA8XTUyBKvAkOOjBX9oJNiV6G3P+T+tihFjo2TqA==
-
 deepmerge@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-4.0.0.tgz#3e3110ca29205f120d7cb064960a39c3d2087c09"