diff --git a/docker/ubuntu18.04-cuda10.1/openmpi4.0.4/requirements.txt b/docker/ubuntu18.04-cuda10.1/openmpi4.0.4/requirements.txt
index aff909b6..6d80fefc 100644
--- a/docker/ubuntu18.04-cuda10.1/openmpi4.0.4/requirements.txt
+++ b/docker/ubuntu18.04-cuda10.1/openmpi4.0.4/requirements.txt
@@ -36,7 +36,7 @@ mccabe==0.6.1
 mock==3.0.5
 monotonic==1.5
 mpi4py==3.0.2
-numpy==1.16.4
+numpy==1.22.0
 pycodestyle==2.5.0
 pyflakes==2.1.1
 Pygments==2.4.2