diff --git a/pyproject.toml b/pyproject.toml
index 1ca47422..be7be436 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = 'setuptools.build_meta'
 
 [project]
 name = "localtileserver"
-version = "0.10.0rc3"
+version = "0.10.0rc4"
 description = "Locally serve geospatial raster tiles in the Slippy Map standard."
 readme = "README.md"
 authors = [