diff --git a/main.py b/main.py
index f97f7fa..cf8f7b4 100755
--- a/main.py
+++ b/main.py
@@ -91,7 +91,7 @@ def checkLastMonths(backwardsMonths=6):
         # parse and dump
         csvOut = os.path.join(CSV_DIR, 'Wetterdaten-{}-{}.csv'.format(
                                             calendar.month_name[monthNumber], year))
-        with open(csvOut, 'w', newline='') as file:
+        with open(csvOut, 'w', newline='', encoding="utf-8") as file:
 
             fieldnames = list(headerMappings.values())
             writer = csv.DictWriter(file, fieldnames=fieldnames, delimiter=";")