diff --git a/requirements.txt b/requirements.txt
index a75012b..74de2f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-numpy>=1.26.4
+numpy==1.26.4
 matplotlib==3.6.2
 pandas==2.0.3
 gmr==1.6.2