diff --git a/pyproject.toml b/pyproject.toml
index 06289ccab..a465605c1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ build-backend = "setuptools.build_meta"
 
 [tool.cibuildwheel]
 build = "*"
-skip = "pp* cp36* cp37* cp38* *-win32 *i686*"
+skip = "pp* cp36* cp37* cp38* cp39* *-win32 *i686*"
 test-skip = ""
 free-threaded-support = false