diff --git a/serpscrap/config.py b/serpscrap/config.py
index dfb54e2..acefce5 100644
--- a/serpscrap/config.py
+++ b/serpscrap/config.py
@@ -94,4 +94,4 @@ def apply(self, config):
         Args:
             config (dict): new configuration
         """
-        self.config = {**self.config, **config}
+        self.config.update(config)