diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 179ff87b5..f866d088a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,7 +38,7 @@ repos:
   - id: isort
 
 - repo: https://github.com/psf/black
-  rev: 21.11b1
+  rev: 21.12b0
   hooks:
   - id: black
 
diff --git a/cibuildwheel/projectfiles.py b/cibuildwheel/projectfiles.py
index 7b106d12d..1b3a6e3e2 100644
--- a/cibuildwheel/projectfiles.py
+++ b/cibuildwheel/projectfiles.py
@@ -12,7 +12,6 @@
     def get_constant(x: ast.Str) -> str:
         return x.s
 
-
 else:
     Constant = ast.Constant