diff --git a/EM-algorithm/requirements.txt b/EM-algorithm/requirements.txt
index af7665b..4d08d19 100644
--- a/EM-algorithm/requirements.txt
+++ b/EM-algorithm/requirements.txt
@@ -1,3 +1,3 @@
 numpy==1.15.4
 matplotlib==3.0.3
-Pillow==6.2.0
+Pillow==8.3.2