diff --git a/roles/HSLinUCB/files/simulation/requirements.txt b/roles/HSLinUCB/files/simulation/requirements.txt
index 2be3309..aa5d84b 100644
--- a/roles/HSLinUCB/files/simulation/requirements.txt
+++ b/roles/HSLinUCB/files/simulation/requirements.txt
@@ -12,7 +12,7 @@ Keras==2.3.1
 kubernetes==12.0.0
 matplotlib==3.1.3
 notebook==6.4.10
-numpy==1.21.0
+numpy==1.22.0
 pandas==0.25.1
 pickleshare==0.7.5
 requests==2.22.0