diff --git a/requirements.txt b/requirements.txt
index b5ee15c..9c62da6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ mock==2.0.0
 nbconvert==5.3.0
 nbformat==4.4.0
 notebook==5.0.0
-numpy==1.13.1
+numpy==1.21.0
 oauth==1.0.1
 pandocfilters==1.4.2
 pathlib2==2.3.0