diff --git a/ovsdbapp/utils.py b/ovsdbapp/utils.py
index 22338f7a..fb892f15 100644
--- a/ovsdbapp/utils.py
+++ b/ovsdbapp/utils.py
@@ -24,7 +24,7 @@ from ovsdbapp.backend.ovs_idl import rowview
 
 
 def normalize_ip(ip):
-    return str(netaddr.IPAddress(ip))
+    return str(netaddr.IPAddress(ip, flags=netaddr.INET_ATON))
 
 
 def normalize_ip_port(ipport):
diff --git a/requirements.txt b/requirements.txt
index 778430d3..b15760c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@
 # date but we do not test them so no guarantee of having them all correct. If
 # you find any incorrect lower bounds, let us know or propose a fix.
 fixtures>=3.0.0 # Apache-2.0/BSD
-netaddr>=0.7.18 # BSD
+netaddr>=0.10.0 # BSD
 ovs>=2.10.0 # Apache-2.0
 pbr!=2.1.0,>=2.0.0 # Apache-2.0