diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c6fecf4..830016a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
         with:
-          node-version: 24.22.2
+          node-version: 26.13.0
           cache: npm
       - run: npm ci
       - name: Install GBDK-2020 (compiles the exported C code in the tests)
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
         with:
-          node-version: 24.22.2
+          node-version: 26.13.0
           cache: npm
       - run: npm ci
       - run: npm run build
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index b580fa4..c247809 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
         with:
-          node-version: 24.22.2
+          node-version: 26.13.0
           cache: npm
       - run: npm ci
       - run: npm test
diff --git a/package-lock.json b/package-lock.json
index 06a8b0f..a451962 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "devDependencies": {
         "@fontsource/silkscreen": "^5.3.0",
         "@fontsource/vt323": "^5.3.0",
-        "@types/node": "^24.19.2",
+        "@types/node": "^26.6.6",
         "chiptune3": "^0.8.10",
         "marked": "^18.1.2",
         "playwright": "1.64.1",
@@ -383,13 +383,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "24.19.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.19.2.tgz",
-      "integrity": "sha512-93d49wCWJkCyN87MxLpNN6KXPCwFw7bVUg79mGUV1OS40JGWwVCr8n61DXCSqz7CV6/VfPkb7xec7uP2M+QHWQ==",
+      "version": "26.6.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.6.tgz",
+      "integrity": "sha512-MzQj+8Kx3XI40OmUAE6Qoh58ZMNstNNMwn2nfd3qWsfe7nDNSqJNzes4njhz6AHwrSHOffSLwXU6yb474Q4aog==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@typescript/typescript-aix-ppc64": {
@@ -1398,9 +1398,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.24.6",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.24.6.tgz",
-      "integrity": "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==",
+      "version": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index 9166329..cdb8b4a 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "devDependencies": {
     "@fontsource/silkscreen": "^5.3.0",
     "@fontsource/vt323": "^5.3.0",
-    "@types/node": "^24.19.2",
+    "@types/node": "^26.6.6",
     "chiptune3": "^0.8.10",
     "marked": "^18.1.2",
     "playwright": "1.64.1",