diff --git a/stimulus/requirements.txt b/stimulus/requirements.txt
index abfbb4c..62098e1 100644
--- a/stimulus/requirements.txt
+++ b/stimulus/requirements.txt
@@ -34,7 +34,7 @@ opencv-python==4.0.0.21
 openpyxl==2.6.2
 pandas==0.24.2
 pbr==5.1.3
-Pillow==5.4.1
+Pillow==9.3.0
 proglog==0.1.9
 psutil==5.6.1
 PsychoPy==3.0.7