diff --git a/bitmex-inflow-outflow/requirements.txt b/bitmex-inflow-outflow/requirements.txt
index fea2cf0..9af0bb5 100644
--- a/bitmex-inflow-outflow/requirements.txt
+++ b/bitmex-inflow-outflow/requirements.txt
@@ -13,7 +13,7 @@ jupyter-client==6.1.3
 jupyter-core==4.6.3
 kiwisolver==1.2.0
 matplotlib==3.2.1
-numpy==1.18.4
+numpy==1.22.0
 pandas==1.0.3
 parso==0.7.0
 pexpect==4.8.0