diff --git a/CHANGELOG.md b/CHANGELOG.md
index 893d263f20..e8ebd8c1ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+## UNRELEASED
+
 ## 1.5.1 (May 22, 2019)
 
 SECURITY:
diff --git a/version/version.go b/version/version.go
index 753359d227..f3873f4c7e 100644
--- a/version/version.go
+++ b/version/version.go
@@ -20,7 +20,7 @@ var (
 	// A pre-release marker for the version. If this is "" (empty string)
 	// then it means that it is a final release. Otherwise, this is a pre-release
 	// such as "dev" (in development), "beta", "rc1", etc.
-	VersionPrerelease = ""
+	VersionPrerelease = "dev"
 )
 
 // GetHumanVersion composes the parts of the version in a way that's suitable