diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 23d2793a0..371910108 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -51,6 +51,7 @@ repos:
             "--output-file",
             "requirements.txt"
         ]
+        files: ^pyproject\.toml$
 
 # -   repo: https://github.com/pre-commit/mirrors-mypy
 #     rev: v1.14.0