diff --git a/pytic/pytic.py b/pytic/pytic.py
index d4647f2..e4b55aa 100644
--- a/pytic/pytic.py
+++ b/pytic/pytic.py
@@ -292,7 +292,10 @@ def _reinitialize(self):
 
     def load_config(self, config_file):
         with open(config_file, 'r') as ymlfile:
-            cfg = yaml.load(ymlfile)
+            if yaml.__version__.split('.')[:2] < ['5', '1']:
+                cfg = yaml.load(ymlfile)
+            else:
+                cfg = yaml.load(ymlfile, yaml.SafeLoader)
 
         cfg_settings = cfg['tic_settings']
 
@@ -326,4 +329,4 @@ def load_config(self, config_file):
 if __name__ == '__main__':
 
     tic = PyTic()
-    print(tic.list_connected_device_serial_numbers())
\ No newline at end of file
+    print(tic.list_connected_device_serial_numbers())