diff --git a/docker/cpu/onnx/requirements.txt b/docker/cpu/onnx/requirements.txt
index 24635f2..3ae8536 100644
--- a/docker/cpu/onnx/requirements.txt
+++ b/docker/cpu/onnx/requirements.txt
@@ -8,7 +8,7 @@ flask-restplus==0.12.1
 sphinx-rtd-theme==0.4.3
 onnx==1.9.0
 onnxruntime==1.5.1
-Pillow==6.2.1
+Pillow==8.1.1
 celery==4.3.0
 redis==3.3.6
 vine==1.3.0