diff --git a/pyproject.toml b/pyproject.toml
index 589f091..96fb4c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,6 +53,7 @@ dependencies = [
     "Werkzeug ==2.3.8",
     "requests ==2.31.0",
     "redis ==4.4.4",
+    "numpy<2",
     "prometheus-client ==0.15.0",
     "polib ==1.1.1",
     "packaging ==23.1",