diff --git a/nwb_formatting/requirements.txt b/nwb_formatting/requirements.txt
index 74dd24a..36f16b9 100644
--- a/nwb_formatting/requirements.txt
+++ b/nwb_formatting/requirements.txt
@@ -4,7 +4,7 @@ et-xmlfile==1.0.1
 h5py==2.8.0
 idna==2.7
 jdcal==1.4
-numpy==1.15.3
+numpy==1.22.0
 openpyxl==2.5.9
 pandas==0.23.4
 pynwb==0.2.0