diff --git a/version.go b/version.go
index 321425e2..07dfdb43 100644
--- a/version.go
+++ b/version.go
@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.19.0-dev"
+const Version = "1.20.0-dev"