diff --git a/python/requirements.txt b/python/requirements.txt
index b7a642b49489ae15a4c62cc74d2a1919ffa3c6d0..c6938505b2cf5d38eda35192c930ac69ce2144ed 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -22,7 +22,9 @@ opencv-python==3.4.17.61; platform_machine !=  "aarch64"
 opencv-python; platform_machine == "aarch64"
 pytest==7.0.1
 prometheus-client==0.12.0
-pillow==8.4.0
+pillow==8.4.0 ; python_version == "3.6"
+pillow==9.0.0 ; python_version > "3.6"
 av==8.0.3
 decord==0.4.2
 SimpleITK
+