diff --git a/requirements.txt b/requirements.txt
index a6c2dc7..61cafb9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.13.1
+numpy==1.22.0
 cython==0.26
 scikit-learn==0.19.0
 scipy==0.19.1