update SDK version
diff --git a/pkgs/json_rpc_2/pubspec.yaml b/pkgs/json_rpc_2/pubspec.yaml
index 4f53cdc..afe3cad 100644
--- a/pkgs/json_rpc_2/pubspec.yaml
+++ b/pkgs/json_rpc_2/pubspec.yaml
@@ -1,5 +1,5 @@
name: json_rpc_2
-version: 2.0.8
+version: 2.0.7
author: Dart Team <misc@dartlang.org>
description: An implementation of the JSON-RPC 2.0 spec.
homepage: http://github.com/dart-lang/json_rpc_2
@@ -9,4 +9,4 @@
dev_dependencies:
test: "^0.12.28"
environment:
- sdk: ">=1.8.0 <2.0.0"
+ sdk: ">=2.0.0-dev.17.0 <2.0.0"