diff --git a/.ci/requirements-cibw.txt b/.ci/requirements-cibw.txt
index b8e6c3947..210f29d3a 100644
--- a/.ci/requirements-cibw.txt
+++ b/.ci/requirements-cibw.txt
@@ -1 +1 @@
-cibuildwheel==2.20.0
+cibuildwheel==2.21.0