diff --git a/ryu/lib/packet/ipv6.py b/ryu/lib/packet/ipv6.py
index 56129c36..3e55f236 100644
--- a/ryu/lib/packet/ipv6.py
+++ b/ryu/lib/packet/ipv6.py
@@ -15,9 +15,7 @@
 
 import abc
 import struct
-import socket
 from . import packet_base
-from . import packet_utils
 from . import icmpv6
 from . import tcp
 from ryu.ofproto import inet