diff --git a/requirements.txt b/requirements.txt
index 0a75cdd..78e85b1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ black==23.9.1
 python-decouple==3.8
 jsonschema[format]==4.19.1
 pandas==2.1.1
+numpy>=1.21,<2.0
 xlrd==2.0.1
 odfpy==1.4.1
 requests==2.31.0