diff --git a/papers/SubTagger/requirements_pip.txt b/papers/SubTagger/requirements_pip.txt
index 768947c..913c21e 100644
--- a/papers/SubTagger/requirements_pip.txt
+++ b/papers/SubTagger/requirements_pip.txt
@@ -75,7 +75,7 @@ parsimonious==0.8.1
 parso==0.4.0
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==6.1.0
+Pillow==9.0.1
 plac==0.9.6
 pluggy==0.12.0
 preshed==2.0.1