diff --git a/staticmap/staticmap.py b/staticmap/staticmap.py
index 7378ec2..07faaae 100644
--- a/staticmap/staticmap.py
+++ b/staticmap/staticmap.py
@@ -422,7 +422,7 @@ def _draw_base_layer(self, image):
 
                 try:
                     response_status_code, response_content = future.result()
-                except:
+                except Exception:
                     response_status_code, response_content = None, None
 
                 if response_status_code != 200: