diff --git a/nodejs/express5-postgres/package-lock.json b/nodejs/express5-postgres/package-lock.json
index cdc1402c..b881a1c0 100644
--- a/nodejs/express5-postgres/package-lock.json
+++ b/nodejs/express5-postgres/package-lock.json
@@ -35,7 +35,7 @@
         "@types/bcrypt": "^6.0.0",
         "@types/express": "^5.0.6",
         "@types/jsonwebtoken": "^9.0.10",
-        "@types/node": "^25.9.5",
+        "@types/node": "^26.4.0",
         "@types/pg": "^8.23.1",
         "drizzle-kit": "^0.31.10",
         "eslint": "^10.9.1",
@@ -2768,12 +2768,12 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.9.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.5.tgz",
-      "integrity": "sha512-OScDchr2fwuUmWdf4kZ9h7PcJiYDVInhJizG/biAq3cAvqwYktuy/TYGGdZNMtNTFUP7rnb0NU4TUdm82kt4Rg==",
+      "version": "26.4.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.4.0.tgz",
+      "integrity": "sha512-faiGnoIrLH/V8cibOMEAZ8pMw6oXqSukl29ra4mN8GdaB2ZewzeaLj+INpV5N+Z1eKWzY+IzaIZH2EIR6YZRNQ==",
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/pg": {
@@ -7081,9 +7081,9 @@
       }
     },
     "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==",
       "license": "MIT"
     },
     "node_modules/unpipe": {
diff --git a/nodejs/express5-postgres/package.json b/nodejs/express5-postgres/package.json
index e39cd898..778a640b 100644
--- a/nodejs/express5-postgres/package.json
+++ b/nodejs/express5-postgres/package.json
@@ -69,7 +69,7 @@
     "@types/bcrypt": "^6.0.0",
     "@types/express": "^5.0.6",
     "@types/jsonwebtoken": "^9.0.10",
-    "@types/node": "^25.9.5",
+    "@types/node": "^26.4.0",
     "@types/pg": "^8.23.1",
     "drizzle-kit": "^0.31.10",
     "eslint": "^10.9.1",