diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index cc941189..a8c0c3c2 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,14 +14,14 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.12.3
+  rev: v0.12.4
   hooks:
   - id: ruff
     args: ["--fix", "--show-fixes"]
   - id: ruff-format
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.16.1
+  rev: v1.17.0
   hooks:
   - id: mypy
     name: mypy 3.11 on cibuildwheel/
diff --git a/cibuildwheel/projectfiles.py b/cibuildwheel/projectfiles.py
index f9e2ef3b..19631460 100644
--- a/cibuildwheel/projectfiles.py
+++ b/cibuildwheel/projectfiles.py
@@ -50,7 +50,7 @@ class Analyzer(ast.NodeVisitor):
         )
 
         match node:
-            case ast.keyword(arg="python_requires", value=ast.Constant(value=version)):
+            case ast.keyword(arg="python_requires", value=ast.Constant(value=str(version))):
                 if unnested or name_main_unnested:
                     self.requires_python = version