diff --git a/py.requirements/runtime.txt b/py.requirements/runtime.txt
index 975289bf..c1ef7c7b 100644
--- a/py.requirements/runtime.txt
+++ b/py.requirements/runtime.txt
@@ -3,6 +3,6 @@
 # ============================================================================
 # REQUIRES: pip >= 6.0
 
-six==1.12.0
+six==1.17.0
 boto3==1.9.171
 python-dateutil==2.8.0