diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7699db4..3e2105d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        nodejs: ['12', '14', '16', '18', '20']
+        nodejs: ['12', '14', '16', '18', '20', '21']
     steps:
       - name: Checkout
         uses: actions/checkout@v1
diff --git a/package-lock.json b/package-lock.json
index f2ac8a0..945c0bd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -35,7 +35,7 @@
         "webpack-merge": "^5.8.0"
       },
       "engines": {
-        "node": ">=12.10 <=20",
+        "node": ">=12.10 <=21",
         "npm": ">=7.0 <10"
       }
     },
diff --git a/package.json b/package.json
index 52724de..33ee2cf 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "prepare": "npm run build:browser"
   },
   "engines": {
-    "node": ">=12.10 <=20",
+    "node": ">=12.10 <=21",
     "npm": ">=7.0 <10"
   },
   "license": "Apache-2.0"