diff --git a/requirements.txt b/requirements.txt
index f96cb71..1a1858a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,8 @@
 # Only for testing pinned versions on the CI
 freezegun==1.5.1
 httpx==0.27.2  # Temporarily pin HTTPX pending RESPX compatibility
-numpy==2.1.3
+numpy==2.1.3; python_version >= "3.10"
+numpy; python_version <= "3.9"
 pandas==2.2.3
 platformdirs==4.3.6
 prettytable==3.12.0