diff --git a/version.go b/version.go
index f2bba445fc9..d621593962c 100644
--- a/version.go
+++ b/version.go
@@ -1,4 +1,4 @@
 package client
 
 // Version used in User-Agent header.
-const Version = "2.5.0"
+const Version = "2.5.1+dev"