diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 832e33d73..42951e47e 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: v0.4.10
+  rev: v0.5.0
   hooks:
   - id: ruff
     args: ["--fix", "--show-fixes"]
   - id: ruff-format
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.10.0
+  rev: v1.10.1
   hooks:
   - id: mypy
     name: mypy 3.8 on cibuildwheel/
diff --git a/cibuildwheel/projectfiles.py b/cibuildwheel/projectfiles.py
index 73593fc74..c1a376696 100644
--- a/cibuildwheel/projectfiles.py
+++ b/cibuildwheel/projectfiles.py
@@ -39,10 +39,8 @@ def is_main(parent: ast.AST | None) -> bool:
     if len(mains) != 1:
         return False
     consts = {x for x in values if isinstance(x, ast.Name) and x.id == "__name__"}
-    if len(consts) != 1:
-        return False
 
-    return True
+    return len(consts) == 1
 
 
 class Analyzer(ast.NodeVisitor):