diff --git a/requirements_ubuntu_py35+.txt b/requirements_ubuntu_py35+.txt
index 40382a2..ba826d1 100644
--- a/requirements_ubuntu_py35+.txt
+++ b/requirements_ubuntu_py35+.txt
@@ -1,7 +1,7 @@
 cycler==0.10.0
 kiwisolver==1.1.0
 matplotlib==3.0.3
-numpy==1.16.3
+numpy==1.22.0
 Pillow==6.0.0
 pyparsing==2.4.0
 python-dateutil==2.8.0
diff --git a/requirements_win_conda_py37.txt b/requirements_win_conda_py37.txt
index a252835..b854731 100644
--- a/requirements_win_conda_py37.txt
+++ b/requirements_win_conda_py37.txt
@@ -5,7 +5,7 @@ kiwisolver==1.1.0
 matplotlib==3.0.3
 mkl-fft==1.0.12
 mkl-random==1.0.2
-numpy==1.16.3
+numpy==1.22.0
 olefile==0.46
 Pillow==6.0.0
 pycparser==2.19