diff --git a/krakenex/api.py b/krakenex/api.py
index b1575fb..bd1a093 100644
--- a/krakenex/api.py
+++ b/krakenex/api.py
@@ -67,6 +67,10 @@ def __init__(self, key='', secret=''):
         })
         self.response = None
         self._json_options = {}
+        # Suppress debug-level logging from the requests/urllib3 library,
+        # which would otherwise clutter the caller's logs.
+        import logging
+        logging.getLogger('urllib3').setLevel(logging.WARNING)
         return
 
     def json_options(self, **kwargs):