diff --git a/ydb/aio/credentials.py b/ydb/aio/credentials.py
index 9edb8fe4..3bfac363 100644
--- a/ydb/aio/credentials.py
+++ b/ydb/aio/credentials.py
@@ -62,7 +62,7 @@ async def _refresh_token(self, should_raise=False):
 
         except Exception as e:
             self.last_error = str(e)
-            self.logger.error("Failed to refresh token async: %s", e)
+            self.logger.error("Failed to refresh token async: %s", e, exc_info=True)
             if should_raise:
                 raise issues.ConnectionError(
                     "%s: %s.\n%s" % (self.__class__.__name__, self.last_error, self.extra_error_message)
diff --git a/ydb/credentials.py b/ydb/credentials.py
index c7e1cec2..eca94e11 100644
--- a/ydb/credentials.py
+++ b/ydb/credentials.py
@@ -118,7 +118,7 @@ def _refresh_token(self, should_raise=False):
 
         except Exception as e:
             self.last_error = str(e)
-            self.logger.error("Failed to refresh token: %s", e)
+            self.logger.error("Failed to refresh token: %s", e, exc_info=True)
             if should_raise:
                 raise issues.ConnectionError(
                     "%s: %s.\n%s" % (self.__class__.__name__, self.last_error, self.extra_error_message)