diff --git a/crates/lox-space/pyproject.toml b/crates/lox-space/pyproject.toml
index d0691e38..b78eb263 100644
--- a/crates/lox-space/pyproject.toml
+++ b/crates/lox-space/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "lox-space"
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 classifiers = [
     "Programming Language :: Rust",
     "Programming Language :: Python :: Implementation :: CPython",