diff --git a/typescript/package-lock.json b/typescript/package-lock.json
index 8799b6c..3a58ea0 100644
--- a/typescript/package-lock.json
+++ b/typescript/package-lock.json
@@ -16,12 +16,13 @@
       "link": true
     },
     "node_modules/@types/node": {
-      "version": "22.19.17",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.17.tgz",
-      "integrity": "sha512-wGdMcf+vPYM6jikpS/qhg6WiqSV/OhG+jeeHT/KlVqxYfD40iYJf9/AE1uQxVWFvU7MipKRkRv8NSHiCGgPr8Q==",
+      "version": "26.5.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.5.1.tgz",
+      "integrity": "sha512-CzNm2FezW4VR/LjG6yUdiEgLE/rAQ9Slj5gCu/C2VrdcW7I0ahNZ8DRbHT7zOZ6r3ONgd/bsQIeSaoDGrd1C6g==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/ajv": {
@@ -102,10 +103,11 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
-      "dev": true
+      "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"
     },
     "packages/core": {
       "name": "@pcs/core",
@@ -115,7 +117,7 @@
         "ajv-formats": "^3.0.1"
       },
       "devDependencies": {
-        "@types/node": "^22.0.0",
+        "@types/node": "^26.5.1",
         "typescript": "^5.6.0"
       }
     }
diff --git a/typescript/packages/core/package.json b/typescript/packages/core/package.json
index 0bd77f5..78c9945 100644
--- a/typescript/packages/core/package.json
+++ b/typescript/packages/core/package.json
@@ -21,7 +21,7 @@
     "ajv-formats": "^3.0.1"
   },
   "devDependencies": {
-    "@types/node": "^22.0.0",
+    "@types/node": "^26.5.1",
     "typescript": "^5.6.0"
   }
 }