diff --git a/requirements.txt b/requirements.txt
index 94b5eb6..2cefa79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 cython>=0.24.1
-numpy>=1.26.4,<2.0.0
+numpy==2.1.1
 scipy>=1.6.0
 gsd>3.0.0
 MDAnalysis>=2.7.0