diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index cc3d83a0..ec979a0f 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -20,8 +20,8 @@ jobs:
         os:
           - ubuntu-latest
         node:
-          - '16'
           - '18'
+          - '20'
         include:
           - os: ubuntu-latest
             os_name: Linux
@@ -42,8 +42,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          - '16'
           - '18'
+          - '20'
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -67,8 +67,8 @@ jobs:
         os:
           - ubuntu-latest
         node:
-          - '16'
           - '18'
+          - '20'
         include:
           - os: ubuntu-latest
             os_name: Linux
@@ -113,8 +113,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          - '16'
           - '18'
+          - '20'
     steps:
       - name: Checkout
         uses: actions/checkout@v3
diff --git a/.nvmrc b/.nvmrc
index a77793ec..209e3ef4 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-lts/hydrogen
+20
diff --git a/package-lock.json b/package-lock.json
index 47897cda..e5c98155 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@seamapi/types": "^1.12.0"
       },
       "devDependencies": {
-        "@types/node": "^18.11.18",
+        "@types/node": "^20.6.2",
         "ava": "^5.0.1",
         "c8": "^8.0.0",
         "concurrently": "^8.2.1",
@@ -31,8 +31,8 @@
         "typescript": "^5.1.0"
       },
       "engines": {
-        "node": ">=16.13.0",
-        "npm": ">= 8.1.0"
+        "node": ">=18.12.0",
+        "npm": ">= 8.19.2"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -815,9 +815,9 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "18.17.17",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.17.17.tgz",
-      "integrity": "sha512-cOxcXsQ2sxiwkykdJqvyFS+MLQPLvIdwh5l6gNg8qF6s+C7XSkEWOZjK+XhUZd+mYvHV/180g2cnCcIl4l06Pw==",
+      "version": "20.6.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.6.2.tgz",
+      "integrity": "sha512-Y+/1vGBHV/cYk6OI1Na/LHzwnlNCAfU3ZNGrc1LdRe/LAIbdDPTTv/HU3M7yXN448aTVDq3eKRm2cg7iKLb8gw==",
       "dev": true
     },
     "node_modules/@types/normalize-package-data": {
diff --git a/package.json b/package.json
index fb82e2c8..a504c168 100644
--- a/package.json
+++ b/package.json
@@ -67,14 +67,14 @@
     "report": "c8 report"
   },
   "engines": {
-    "node": ">=16.13.0",
-    "npm": ">= 8.1.0"
+    "node": ">=18.12.0",
+    "npm": ">= 8.19.2"
   },
   "dependencies": {
     "@seamapi/types": "^1.12.0"
   },
   "devDependencies": {
-    "@types/node": "^18.11.18",
+    "@types/node": "^20.6.2",
     "ava": "^5.0.1",
     "c8": "^8.0.0",
     "concurrently": "^8.2.1",