diff --git a/requirements-test.txt b/requirements-test.txt
index e68f835..70a7229 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,4 +1,4 @@
 pfft-python @ git+https://github.com/MP-Gadget/pfft-python
 pmesh @ git+https://github.com/MP-Gadget/pmesh
 fastpm @ git+https://github.com/ASKabalan/fastpm-python
-numpy
+numpy==2.2.6