diff --git a/plugins/client.go b/plugins/client.go
index 934a829..e9d2adb 100644
--- a/plugins/client.go
+++ b/plugins/client.go
@@ -16,7 +16,7 @@ import (
 )
 
 const (
-	versionMimetype = "application/vnd.docker.plugins.v1.1+json"
+	versionMimetype = "application/vnd.docker.plugins.v1.2+json"
 	defaultTimeOut  = 30
 )