diff --git a/requirements.txt b/requirements.txt
index aa391d5..e5ef09a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,8 @@ Pygments==2.19.2
 pytest==8.4.2
 python-dateutil==2.9.0.post0
 pytz==2025.2
+ruff==0.14.5
+scipy==1.16.3
 six==1.17.0
 sympy==1.14.0
 tzdata==2025.2