diff --git a/app.py b/app.py
index adf31c9..e01dde9 100644
--- a/app.py
+++ b/app.py
@@ -7,7 +7,7 @@ from pathlib import Path
 from flask import Flask, g, jsonify, render_template, request, session
 
 BASE_DIR = Path(__file__).resolve().parent
-DB_PATH = BASE_DIR / "schiffe_versenken.db"
+DB_PATH = str(BASE_DIR / "schiffe_versenken.db")
 BOARD_SIZE = 10
 
 FLEET = [
diff --git a/requirements.txt b/requirements.txt
index c37b670..3ab9a28 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-Flask>=3.0
+Flask>=2.0