diff --git a/wsgi.py b/wsgi.py
index 6aec640..792cb4b 100644
--- a/wsgi.py
+++ b/wsgi.py
@@ -21,7 +21,9 @@ config = {
     "CACHE_THRESHOLD": 1000,
     "CACHE_DIR": "cache",
 }
+import locale
 
+locale.setlocale(locale.LC_ALL, "de_DE.UTF-8")
 app = Flask(__name__)
 app.config.from_mapping(config)
 cache = Cache(app)