diff --git a/requirements.txt b/requirements.txt
index 4e5e511..d735ad3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -118,7 +118,7 @@ petsc4py==3.7.0
 pexpect==4.7.0
 pickleshare==0.7.5
 pigar==0.10.0
-Pillow==3.1.2
+Pillow==8.2.0
 pipreqs==0.4.10
 pkgconfig==1.1.0
 plainbox==0.25