diff --git a/requirements.txt b/requirements.txt
index c071619..c7647a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@
 #pytest>=3.3.1
 
 # - local config
-numpy==1.16.3
+numpy==1.22.0
 matplotlib>=3.0.0
 scipy==1.1.0
 pandas==0.24.2