diff --git a/requirements.txt b/requirements.txt
index b110198..f7ebb5a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ Markdown==3.1.1
 more-itertools==7.1.0
 networkx==2.3
 nose==1.3.7
-numpy==1.16.4
+numpy==1.22.0
 obonet==0.2.5
 packaging==19.0
 pandas==0.24.2