diff --git a/requirements_3.9_arm64.txt b/requirements_3.9_arm64.txt
index c63501c..30af96f 100644
--- a/requirements_3.9_arm64.txt
+++ b/requirements_3.9_arm64.txt
@@ -4,7 +4,7 @@ numexpr==2.8.1
 h5py==3.1.0
 tqdm==4.62.3
 colorama==0.4.4
-cython==0.29.26
+cython==0.29.33
 ffmpeg-python==0.2.0
 Pillow==8.4.0
 scikit-image==0.19.1