diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ef44ade..dcdd2a7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,3 +1,5 @@
+default_language_version:
+  python: python3.9
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v3.3.0
@@ -12,6 +14,7 @@ repos:
     rev: 23.3.0
     hooks:
       - id: black
+        args: ["--check"]
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.0.270
     hooks: