diff --git a/requirements.lock.txt b/requirements.lock.txt
index 84cfc04..2c08839 100644
--- a/requirements.lock.txt
+++ b/requirements.lock.txt
@@ -21,7 +21,7 @@ MarkupSafe==0.23
 mcpi==0.1.1
 nanpy==0.9.6
 ndg-httpsclient==0.3.2
-numpy==1.8.2
+numpy==1.21.0
 packaging==16.8
 pathlib2==2.2.1
 pexpect==4.2.1