diff --git a/weather_openweathermap.py b/weather_openweathermap.py
index f78e9ec..6e0bfa8 100644
--- a/weather_openweathermap.py
+++ b/weather_openweathermap.py
@@ -165,9 +165,9 @@ def get_city_by_name(city_name: str) -> City:
     with open("city.list.json", "r") as city_list_file:
         city_data = city_list_file.read()
     city_json = json.loads(city_data)
-    city_list = list(filter(lambda x: x['name'] == city_name, city_json))
+    city_list = list(filter(lambda x: x['name'].casefold() == city_name.casefold(), city_json))
     if len(city_list) == 0:
-        city_list = list(filter(lambda x: (x['name'].find(city_name)) != -1, city_json))
+        city_list = list(filter(lambda x: (x['name'].casefold().find(city_name.casefold())) != -1, city_json))
     if len(city_list) == 0:
         return City(cid=-1, name="none", lat=0, lon=0)
     return City(cid=city_list[0]['id'], name=city_list[0]['name'], lat=city_list[0]['coord']['lat'],