Update README.md

horike37 · web-flow · commit 570c630f8d69 · 2017-07-31T01:00:13.000+09:00
diff --git a/README.md b/README.md
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 # Serverless Step Functions
 Serverless plugin for AWS Step Functions.
 
-This plugin requires Serverless v1.4.0 or later.
-
 ## Install
 Run `npm install` in your Serverless project.
 ```
