diff --git a/src/validation/error.ts b/src/validation/error.ts
index 9ccd07ef..8a114c18 100644
--- a/src/validation/error.ts
+++ b/src/validation/error.ts
@@ -20,7 +20,7 @@ export type AdapterErrorResponse = {
 export class AdapterError extends Error {
   status: string
   statusCode: number
-  cause: unknown
+  override cause: unknown
   url?: string
   errorResponse: unknown
   feedID?: string
diff --git a/tsconfig.json b/tsconfig.json
index 53a4c043..6b8376cb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "outDir": "dist",
     "rootDir": ".",
-    "target": "es2020",
+    "target": "es2022",
     "esModuleInterop": true,
     "moduleResolution": "node",
     "module": "CommonJS",