diff --git a/IRIS_data_download/requirements.txt b/IRIS_data_download/requirements.txt
index 20b82de..a8698ce 100644
--- a/IRIS_data_download/requirements.txt
+++ b/IRIS_data_download/requirements.txt
@@ -9,7 +9,7 @@ idna==2.8
 kiwisolver==1.1.0
 lxml==4.4.1
 matplotlib==3.1.2
-numpy==1.17.3
+numpy==1.22.0
 obspy==1.1.1
 pandas==0.25.3
 pycparser==2.19