diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index 8c20825..853edf3 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -10,7 +10,7 @@ on:
 
 env:
   # Only support 64-bit CPython > 3.6
-  CIBW_SKIP: 'cp36-* cp37-* cp38-* pp* *-manylinux_i686 *-musllinux_* *-win32 cp313-*'
+  CIBW_SKIP: 'cp36-* cp37-* cp38-* cp39-* pp* *-manylinux_i686 *-musllinux_* *-win32 cp313-*'
 
   # This has some of the software we need pre-installed on it
   CIBW_MANYLINUX_X86_64_IMAGE: samwelborn/stempy_wheel_builder_x86_64