diff --git a/requirements.txt b/requirements.txt
index b0e57e1..2edcaff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # Development packages that are used directly.
-numpy==1.16.2
+numpy==1.22.0
 pandas==0.24.2
 scikit-learn==0.20.3
 matplotlib==3.0.3