diff --git a/ocrnet/requirements.txt b/ocrnet/requirements.txt
index 8c37191..b0be52e 100644
--- a/ocrnet/requirements.txt
+++ b/ocrnet/requirements.txt
@@ -6,7 +6,7 @@ idna==2.6
 jaraco.classes==1.4.3
 numpy==1.13.3
 olefile==0.44
-Pillow==4.3.0
+Pillow==9.0.1
 portend==2.2
 pyocr==0.4.7
 pyPdf==1.13