diff --git a/requirements.txt b/requirements.txt
index ac92f454..5e29aa0b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 
 fixtures>=3.0.0 # Apache-2.0/BSD
-netaddr>=0.7.13,!=0.7.16  # BSD
+netaddr!=0.7.16,>=0.7.13 # BSD
 ovs>=2.7.0 # Apache-2.0
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-six>=1.9.0  # MIT
+six>=1.9.0 # MIT