diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6b39e63..dfaacd2 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,6 +5,6 @@
 # numpy-Floor 2.5.1: numpy 2.5.x traegt Requires-Python >=3.12 (keine cp310/cp311-
 # Wheels) -- moeglich, seit py3.10/3.11 fleet-weit gedroppt sind (Marco-Entscheid 2026-07-14).
 numpy>=2.5.2
-scipy>=1.11
+scipy>=1.18.1
 pytest>=9.1.1
 ruff>=0.16.5