Update supported gRPC version
@@ -46,7 +46,7 @@ These are the supported libraries and frameworks:
| [Grails](https://grails.org/) | 3.0+ |
| [Google HTTP Client](https://github.com/googleapis/google-http-java-client) | 1.19+ |
| [Grizzly](https://javaee.github.io/grizzly/httpserverframework.html) | 2.0+ (disabled by default) |
-| [gRPC](https://github.com/grpc/grpc-java) | 1.5+ |
+| [gRPC](https://github.com/grpc/grpc-java) | 1.6+ |
| [GWT](http://www.gwtproject.org/) | 2.0+ |
| [Hibernate](https://github.com/hibernate/hibernate-orm) | 3.3+ |
| [HttpURLConnection](https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/net/HttpURLConnection.html) | Java 7+ |
