diff --git a/requirements-optional.txt b/requirements-optional.txt
index ca8cfa681a..fc64f57a8c 100644
--- a/requirements-optional.txt
+++ b/requirements-optional.txt
@@ -1,5 +1,5 @@
 matplotlib<3.10.9
-pillow>11,<12.0.1
+pillow>11,<12.1.1
 pyrevolve==2.2.7
 scipy<1.15.4
 distributed<2025.11.1