diff --git a/pyproject.toml b/pyproject.toml
index 4322d6f0..9107ac8c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,11 +14,9 @@ dependencies = [
     "anyio>=3.5.0, <5",
     "distro>=1.7.0, <2",
     "sniffio",
-    "cached-property; python_version < '3.8'",
-    "tokenizers >= 0.13.0",
     "jiter>=0.4.0, <1",
 ]
-requires-python = ">= 3.7"
+requires-python = ">= 3.8"
 classifiers = [
   "Typing :: Typed",
   "Intended Audience :: Developers",
@@ -63,6 +61,7 @@ dev-dependencies = [
     "importlib-metadata>=6.7.0",
     "boto3-stubs >= 1",
     "rich>=13.7.1",
+    "tokenizers",
 ]
 
 [tool.rye.scripts]