diff --git a/google/cloud/sql/connector/connector.py b/google/cloud/sql/connector/connector.py
index 80ee6a9c..d9e62013 100755
--- a/google/cloud/sql/connector/connector.py
+++ b/google/cloud/sql/connector/connector.py
@@ -34,7 +34,6 @@
 from google.cloud.sql.connector.enums import IPTypes
 from google.cloud.sql.connector.enums import RefreshStrategy
 from google.cloud.sql.connector.exceptions import ConnectorLoopError
-from google.cloud.sql.connector.exceptions import DnsNameResolutionError
 from google.cloud.sql.connector.instance import RefreshAheadCache
 from google.cloud.sql.connector.lazy import LazyRefreshCache
 import google.cloud.sql.connector.pg8000 as pg8000
@@ -263,8 +262,6 @@ async def connect_async(
                 and then subsequent attempt with IAM database authentication.
             KeyError: Unsupported database driver Must be one of pymysql, asyncpg,
                 pg8000, and pytds.
-            DnsNameResolutionError: Could not resolve PSC IP address from DNS
-                host name.
         """
         if self._keys is None:
             self._keys = asyncio.create_task(generate_keys())
diff --git a/google/cloud/sql/connector/exceptions.py b/google/cloud/sql/connector/exceptions.py
index 629c5d2b..7bff2300 100644
--- a/google/cloud/sql/connector/exceptions.py
+++ b/google/cloud/sql/connector/exceptions.py
@@ -57,13 +57,6 @@ class AutoIAMAuthNotSupported(Exception):
     pass
 
 
-class DnsNameResolutionError(Exception):
-    """
-    Exception to be raised when the DnsName of a PSC connection to a
-    Cloud SQL instance can not be resolved to a proper IP address.
-    """
-
-
 class RefreshNotValidError(Exception):
     """
     Exception to be raised when the task returned from refresh is not valid.