diff --git a/pyproject.toml b/pyproject.toml
index 9e82d37..965b3eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ entry-points = {console_scripts = {substrate = "substrate.substrate:main"}}
 license = {text = "CC-BY-4.0"}
 readme = "README.md"
 requires-python = ">=3.7"
-version = "1.8.0"
+version = "1.9.0"
 
 [project.urls]
 Homepage = "https://github.com/seelabutk/substrate/"