diff --git a/spaceapi/active.py b/spaceapi/active.py
--- a/spaceapi/active.py
+++ b/spaceapi/active.py
@@ -20,7 +20,8 @@ def reload_json():
     global default_json
     global active_json
 
-    default_json = json.load(open(default_json_file, encoding='utf-8'))
+    with open(default_json_file, encoding='utf-8') as f:
+        default_json = json.load(f)
 
     if os.path.exists(last_state_file):
         with open(last_state_file, encoding='utf-8') as f: