diff --git a/api/requirements.txt b/api/requirements.txt
index 63e97b8..29d53f3 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -15,7 +15,7 @@ Markdown==2.6.10
 MarkupSafe==1.0
 numpy==1.13.3
 olefile==0.44
-Pillow==4.3.0
+Pillow==9.0.0
 protobuf==3.5.1
 PyYAML==3.12
 requests==2.18.4