diff --git a/package-lock.json b/package-lock.json
index 2366b12..1ffdf0b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
       },
       "devDependencies": {
         "@types/bun": "^1.2.19",
-        "@types/node": "^22.5.4",
+        "@types/node": "^25.5.0",
         "@types/yargs": "^17.0.33",
         "@typescript-eslint/eslint-plugin": "^8.5.0",
         "@typescript-eslint/parser": "^8.5.0",
@@ -1874,13 +1874,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.17.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.17.0.tgz",
-      "integrity": "sha512-bbAKTCqX5aNVryi7qXVMi+OkB3w/OyblodicMbvE38blyAz7GxXf6XYhklokijuPwwVg9sDLKRxt0ZHXQwZVfQ==",
+      "version": "25.5.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.5.0.tgz",
+      "integrity": "sha512-jp2P3tQMSxWugkCUKLRPVUpGaL5MVFwF8RDuSRztfwgN1wmqJeMSbKlnEtQqU8UrhTmzEmZdu2I6v2dpp7XIxw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~7.18.0"
       }
     },
     "node_modules/@types/normalize-package-data": {
@@ -8387,9 +8387,9 @@
       }
     },
     "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==",
+      "version": "7.18.2",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
+      "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index ce0bc51..d10dde8 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
   },
   "devDependencies": {
     "@types/bun": "^1.2.19",
-    "@types/node": "^22.5.4",
+    "@types/node": "^25.5.0",
     "@types/yargs": "^17.0.33",
     "@typescript-eslint/eslint-plugin": "^8.5.0",
     "@typescript-eslint/parser": "^8.5.0",
diff --git a/src/utils/parallel-processor.ts b/src/utils/parallel-processor.ts
index 76e64f8..529e8f0 100644
--- a/src/utils/parallel-processor.ts
+++ b/src/utils/parallel-processor.ts
@@ -503,8 +503,9 @@ export class ParallelProcessor extends EventEmitter {
 
     // Setup worker error handling
     worker.on('error', error => {
-      log.error('Worker error', { workerId, error: String(error) });
-      this.handleWorkerError(workerId, error);
+      const workerError = error instanceof Error ? error : new Error(String(error));
+      log.error('Worker error', { workerId, error: String(workerError) });
+      this.handleWorkerError(workerId, workerError);
     });
 
     // Setup worker exit handling