diff --git a/daita-app/reference-image-service/functions/handlers/calculate_reference_image/requirements.txt b/daita-app/reference-image-service/functions/handlers/calculate_reference_image/requirements.txt
index d09f382..7a34395 100644
--- a/daita-app/reference-image-service/functions/handlers/calculate_reference_image/requirements.txt
+++ b/daita-app/reference-image-service/functions/handlers/calculate_reference_image/requirements.txt
@@ -1,5 +1,5 @@
 numpy
-Pillow==9.0.1
+Pillow==9.3.0
 scikit-image==0.18.3
 opencv-python==4.5.4.58
 scipy==1.7.2