diff --git a/requirements.txt b/requirements.txt
index 679576d6..57871e2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ pronto==0.12.2
 pyopenms==2.6.0
 python-Levenshtein==0.12.2
 plotly==4.6.0
-pillow==9.0.1
+pillow==9.3.0
 requests==2.24.0
 recommonmark==0.6.0
 xmltodict==0.12.0