diff --git a/action/task-def-formation.yml b/action/task-def-formation.yml
index bf2b9418..71ac0a52 100644
--- a/action/task-def-formation.yml
+++ b/action/task-def-formation.yml
@@ -90,6 +90,7 @@ Resources:
     Type: 'AWS::IAM::Role'
     Properties:
       AssumeRolePolicyDocument:
+        Version: "2012-10-17"
         Statement:
         - Effect: "Allow"
           Action: "kinesis:PutRecord"