diff --git a/2-1-initial-access-malware/Simulator/requirements.txt b/2-1-initial-access-malware/Simulator/requirements.txt
index 9443195..e613c9e 100644
--- a/2-1-initial-access-malware/Simulator/requirements.txt
+++ b/2-1-initial-access-malware/Simulator/requirements.txt
@@ -1,3 +1,4 @@
 pywin32==306
 PyAutoGUI==0.9.54
 opencv-python==4.8.0.84
+Pillow==9.5.0