diff --git a/pyproject.toml b/pyproject.toml
index d4597031a..f1762deb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
     'importlib-metadata>=3.6; python_version<"3.8"',
 ]
 license = {file = "LICENSE.txt"}
-version = "8.0.0.dev0"
+version = "8.0.0"
 
 [project.entry-points.'traitsui.toolkits']
 qt = 'traitsui.qt:toolkit'