diff --git a/flake.nix b/flake.nix
index c490687..d5701b3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,7 +25,7 @@
 
         npmDeps = pkgs.fetchNpmDeps {
           src = ./.;
-          hash = "sha256-wmQI0GrzNmMEVnnVxS6V4hKrVfNqsJ/4WBulnsOeGEw=";
+          hash = "sha256-8am6r0f/muvt9WSCtNLjkE4+Zxb5VvPkO1ECPWD3WjM=";
         };
 
         # Build TypeScript + WASM assets with the native toolchain. These are
diff --git a/package-lock.json b/package-lock.json
index 5a48661..b180d82 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
       "devDependencies": {
         "@playwright/test": "^1.59.1",
         "@types/adm-zip": "^0.5.8",
-        "@types/node": "^25.9.3",
+        "@types/node": "^26.1.1",
         "adm-zip": "^0.5.18",
         "esbuild": "^0.28.1",
         "typescript": "^6.0.3"
@@ -817,13 +817,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "25.9.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.3.tgz",
-      "integrity": "sha512-603BddQMv3pUcr4U2dhujk83N2tTDVr/34wII2B6bJy6g+8WD6yUb11jszNs0gdi4PesVWl7ABt8nYMVpnLUcg==",
+      "version": "26.1.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.1.tgz",
+      "integrity": "sha512-nxAkRSVkN1Y0JC1W8ky/fTfkGsMmcrRsbx+3XoZE+rMOX71kLYTV7fLXpqud1GpbpP5TuffXFqfX7fH2GgZREw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@undecaf/barcode-detector-polyfill": {
@@ -1223,9 +1223,9 @@
       }
     },
     "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": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index c9b6a2c..75d577f 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@playwright/test": "^1.59.1",
     "@types/adm-zip": "^0.5.8",
-    "@types/node": "^25.9.3",
+    "@types/node": "^26.1.1",
     "adm-zip": "^0.5.18",
     "esbuild": "^0.28.1",
     "typescript": "^6.0.3"