diff --git a/eoreader/__meta__.py b/eoreader/__meta__.py
index 16705f3a..4402b400 100644
--- a/eoreader/__meta__.py
+++ b/eoreader/__meta__.py
@@ -17,4 +17,4 @@
 **EOReader** library
 """
 
-__version__ = "0.21.8"
+__version__ = "0.21.9.dev0"