diff --git a/package-lock.json b/package-lock.json
index ef9db1f..d3533a2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
         "chai": "^4.2.0",
         "colors": "^1.4.0",
         "cross-env": "^7.0.3",
-        "deepmerge": "^3.3.0",
+        "deepmerge": "^4.2.2",
         "microbundle": "^0.13.0",
         "mocha": "^8.2.1",
         "rollup": "^1.32.1",
@@ -1926,15 +1926,6 @@
         "rollup": "^1.20.0||^2.0.0"
       }
     },
-    "node_modules/@rollup/plugin-node-resolve/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==",
-      "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/@rollup/pluginutils": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-3.1.0.tgz",
@@ -2815,9 +2806,9 @@
       }
     },
     "node_modules/deepmerge": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-3.3.0.tgz",
-      "integrity": "sha512-GRQOafGHwMHpjPx9iCvTgpu9NojZ49q794EEL94JVEw6VaeA8XTUyBKvAkOOjBX9oJNiV6G3P+T+tihFjo2TqA==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
+      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
       "dev": true,
       "engines": {
         "node": ">=0.10.0"
@@ -7527,14 +7518,6 @@
         "deepmerge": "^4.2.2",
         "is-module": "^1.0.0",
         "resolve": "^1.19.0"
-      },
-      "dependencies": {
-        "deepmerge": {
-          "version": "4.2.2",
-          "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
-          "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
-          "dev": true
-        }
       }
     },
     "@rollup/pluginutils": {
@@ -8185,9 +8168,9 @@
       }
     },
     "deepmerge": {
-      "version": "3.3.0",
-      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-3.3.0.tgz",
-      "integrity": "sha512-GRQOafGHwMHpjPx9iCvTgpu9NojZ49q794EEL94JVEw6VaeA8XTUyBKvAkOOjBX9oJNiV6G3P+T+tihFjo2TqA==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
+      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
       "dev": true
     },
     "define-properties": {
diff --git a/package.json b/package.json
index 2b21be3..b03d081 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "chai": "^4.2.0",
     "colors": "^1.4.0",
     "cross-env": "^7.0.3",
-    "deepmerge": "^3.3.0",
+    "deepmerge": "^4.2.2",
     "microbundle": "^0.13.0",
     "mocha": "^8.2.1",
     "rollup": "^1.32.1",