diff --git a/requirements.txt b/requirements.txt
index 0bad659c49..f23e987ef1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,6 @@
 # process, which may cause wedges in the gate later.
 fixtures>=3.0.0 # Apache-2.0/BSD
 Parsley>=1.2 # MIT
-six>=1.10.0 # MIT
 packaging>=16.5 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
 PyYAML>=3.12 # MIT