diff --git a/requirements.txt b/requirements.txt
index f8b347e..8a08de0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ importlib-metadata==0.17
 Jinja2==2.10.1
 MarkupSafe==1.1.1
 more-itertools==7.0.0
-numpy==1.16.4
+numpy==1.21.0
 packaging==19.0
 pluggy==0.12.0
 py==1.8.0
diff --git a/setup.py b/setup.py
index 72f381c..a9a435c 100644
--- a/setup.py
+++ b/setup.py
@@ -72,7 +72,7 @@ setup(
     extras_require={
         'dev': [
             'future==0.17.1',
-            'numpy==1.16.4',
+            'numpy==1.21.0',
             'pytest-mock==1.10.4',
             'pytest==4.6.1',
             'Sphinx==2.1.0',