diff --git a/pyproject.toml b/pyproject.toml
index 9e1fdd333..4dd565b65 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ optional-dependencies.dev = [
   "python-lsp-server[all]>=1.14,<1.15",
   "ruff>=0.15.16,<0.16",
   "rust-just~=1.51.0",
-  "scipy-stubs>=1.17.1.5,<1.18",
+  "scipy-stubs>=1.17.1.5,<1.19",
   "tbump>=6.11,<6.12",
   "ty>=0.0.43,<0.1",
   "types-cachetools>=7.0.0.20260518,<7.1",