diff --git a/dakiny_bot/logger.py b/dakiny_bot/logger.py
index 9a3d035..6c7765e 100644
--- a/dakiny_bot/logger.py
+++ b/dakiny_bot/logger.py
@@ -1,10 +1,11 @@
 """Creates logger for Dakiny bot."""
 
 import logging
+import os
 import sys
 
 dakiny_logger = logging.getLogger("default")
-dakiny_logger.setLevel(logging.INFO)
+dakiny_logger.setLevel(logging.DEBUG if os.getenv("DEBUG") == "true" else logging.INFO)
 handler = logging.StreamHandler(sys.stdout)
 handler.setFormatter(logging.Formatter("%(asctime)s:%(levelname)s:%(name)s: %(message)s"))
 dakiny_logger.addHandler(handler)