diff --git a/07-Compute-Engine/05_deployment_manager/templates/bowtie-webserver.jinja b/07-Compute-Engine/05_deployment_manager/templates/bowtie-webserver.jinja
index a99741c..3bc17e7 100644
--- a/07-Compute-Engine/05_deployment_manager/templates/bowtie-webserver.jinja
+++ b/07-Compute-Engine/05_deployment_manager/templates/bowtie-webserver.jinja
@@ -10,7 +10,7 @@ resources:
       boot: true
       autoDelete: true
       initializeParams:
-        sourceImage: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/family/debian-9
+        sourceImage: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-11-bullseye-v20220822
     metadata:
       items:
       - key: startup-script
@@ -32,4 +32,4 @@ resources:
       # Access Config required to give the instance a public IP address
       accessConfigs:
       - name: External NAT
-        type: ONE_TO_ONE_NAT
\ No newline at end of file
+        type: ONE_TO_ONE_NAT