diff --git a/requirements/run.txt b/requirements/run.txt
index 40bce3f0..70b41489 100644
--- a/requirements/run.txt
+++ b/requirements/run.txt
@@ -1,4 +1,4 @@
-numpy==1.26
+numpy=1.26
 wxpython
 diffpy.pdffit2
 diffpy.utils