diff --git a/shard.yml b/shard.yml
index 52e98a24..1efbc048 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: noir
-version: 0.8.0
+version: 0.9.0
 
 authors:
   - hahwul <hahwul@gmail.com>
diff --git a/src/noir.cr b/src/noir.cr
index c05c9e75..30141ba5 100644
--- a/src/noir.cr
+++ b/src/noir.cr
@@ -6,7 +6,7 @@ require "./options.cr"
 require "./techs/techs.cr"
 
 module Noir
-  VERSION = "0.8.0"
+  VERSION = "0.9.0"
 end
 
 noir_options = default_options()