diff --git a/specs-go/version.go b/specs-go/version.go
index 0426a50..8364ab1 100644
--- a/specs-go/version.go
+++ b/specs-go/version.go
@@ -25,7 +25,7 @@ const (
 	VersionPatch = 1
 
 	// VersionDev indicates development branch. Releases will be empty string.
-	VersionDev = ""
+	VersionDev = "+dev"
 )
 
 // Version is the specification version that the package types support.