diff --git a/pyproject.toml b/pyproject.toml
index 64b06274..c9dbab08 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ dependencies = [
   "itsdangerous>=2.2,<3",
   "lxml>=5,<7",
   "ome-types>=0.6,<1",
-  "pillow>=11.3,<13",
+  "pillow>=11.3,<14",
   "psycopg[binary]==3.3.6",
   "pydantic-settings>=2.10,<3",
   "pyvips>=3.0,<4",