diff --git a/requirements_dev.txt b/requirements_dev.txt
index be3a093a..b28a6987 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -18,3 +18,4 @@ matplotlib
 pre-commit
 tornado>=6.3.3 # not directly required, pinned by Snyk to avoid a vulnerability
 jupyter-server>=2.7.2 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.0.1 # not directly required, pinned by Snyk to avoid a vulnerability