diff --git a/manage-calendars.py b/manage-calendars.py
index e746c48..74bda22 100644
--- a/manage-calendars.py
+++ b/manage-calendars.py
@@ -39,7 +39,7 @@ def parse_args():
 
 def load_config():
     with open('config.yml', 'r', encoding='utf-8') as f:
-        result = yaml.load(f)
+        result = yaml.safe_load(f)
     return result
 
 
diff --git a/sync-calendar.py b/sync-calendar.py
index 74c81bf..6df9a79 100644
--- a/sync-calendar.py
+++ b/sync-calendar.py
@@ -14,7 +14,7 @@ from gcal_sync import (
 
 def load_config():
     with open('config.yml', 'r', encoding='utf-8') as f:
-        result = yaml.load(f)
+        result = yaml.safe_load(f)
     return result