diff --git a/src/bank/db/queries.ts b/src/bank/db/queries.ts
index 860a80b..3ce5d76 100644
--- a/src/bank/db/queries.ts
+++ b/src/bank/db/queries.ts
@@ -50,7 +50,7 @@ function insertRefreshToken(
   db: Database.Database,
   refreshToken: string,
   expiresIn: number,
-) {
+): void {
   insert(db, "refresh-token", refreshToken, expiresIn)
 }
 
@@ -59,7 +59,7 @@ function insert(
   key: TokenKey,
   token: string,
   expiresIn: number,
-) {
+): void {
   db.prepare("INSERT OR REPLACE INTO tokens VALUES (?, ?, ?)").run(
     key,
     token,
@@ -82,3 +82,10 @@ export function fetchToken(
     }
   )
 }
+
+export function clearTokens(db: Database.Database): void {
+  db.prepare("DELETE FROM tokens WHERE key in ( ?, ? )").run([
+    "access-token",
+    "refresh-token",
+  ] as TokenKey[])
+}
diff --git a/src/bank/sparebank1.ts b/src/bank/sparebank1.ts
index 6b19f30..83f7452 100644
--- a/src/bank/sparebank1.ts
+++ b/src/bank/sparebank1.ts
@@ -3,6 +3,7 @@ import logger from "@/logger.ts"
 import dayjs, { Dayjs } from "dayjs"
 import { Database } from "better-sqlite3"
 import {
+  clearTokens,
   fetchToken,
   insertTokens,
   type TokenResponse,
@@ -97,7 +98,8 @@ export class Sparebank1Impl implements Bank {
     } else if (this.isValidToken(tokenResponse)) {
       return tokenResponse.token
     }
-    // TODO clear database, if refresh token is invalid, will cause Exceptions on each call
+    logger.warn("Refresh token expired, deleting tokens from database")
+    clearTokens(this.db)
     throw new Error("Refresh token is expired. Create a new one")
   }