diff --git a/requirements.txt b/requirements.txt
index a249806..02d0b80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -103,7 +103,7 @@ patsy==0.4.1
 pep8==1.7.0
 pexpect==4.2.1
 pickleshare==0.7.4
-Pillow==4.2.1
+Pillow==9.0.0
 pkginfo==1.4.1
 ply==3.10
 prompt-toolkit==1.0.15