diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4b7638..ff7fc62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## UNRELEASED
+
 ## [v0.9.0] 2024-03-28
 ### Changed
 - Properly close stream if `Ctrl+C` is pressed in interactive mode.
diff --git a/const.go b/const.go
index becb811..62363e6 100644
--- a/const.go
+++ b/const.go
@@ -5,7 +5,7 @@
 package main
 
 const (
-	version = "0.9.0"
+	version = "0.9.1-dev"
 	// defaults
 	defaultBufferSize    = 100
 	defaultConfigRowSep  = 2