diff -Nur ryu-4.15/ryu.egg-info/requires.txt ryu-4.15.new/ryu.egg-info/requires.txt
--- ryu-4.15/ryu.egg-info/requires.txt	2017-07-02 19:12:23.000000000 +0800
+++ ryu-4.15.new/ryu.egg-info/requires.txt	2021-05-11 16:51:19.970161985 +0800
@@ -1,5 +1,5 @@
 eventlet!=0.18.3,>=0.18.2,!=0.20.1,<0.21.0
-msgpack-python>=0.3.0
+msgpack>=0.3.0
 netaddr
 oslo.config>=1.15.0
 ovs>=2.6.0
diff -Nur ryu-4.15/tools/pip-requires ryu-4.15.new/tools/pip-requires
--- ryu-4.15/tools/pip-requires	2017-06-22 15:08:35.000000000 +0800
+++ ryu-4.15.new/tools/pip-requires	2021-05-11 16:50:37.557809721 +0800
@@ -2,7 +2,7 @@
 # following issue.
 # https://github.com/eventlet/eventlet/issues/401
 eventlet!=0.18.3,>=0.18.2,!=0.20.1,<0.21.0
-msgpack-python>=0.3.0  # RPC library, BGP speaker(net_cntl)
+msgpack>=0.3.0  # RPC library, BGP speaker(net_cntl)
 netaddr
 oslo.config>=1.15.0
 ovs>=2.6.0  # OVSDB