diff --git a/requirements.txt b/requirements.txt
index f2f389f..56ba51e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ nose==1.3.7
 notebook==4.3.1
 numba==0.30.1
 numexpr==2.6.1
-numpy==1.11.3
+numpy==1.21.0
 numpydoc==0.6.0
 odo==0.5.0
 openpyxl==2.4.1