diff --git a/demo1_getting_started.py b/demo1_getting_started.py
index d8dd3ab0c0fcd7d8c7efcfb2b65c21ed466833fc..e37806b4c084bf0a80e554c1886f3ff06aebeb84 100644
--- a/demo1_getting_started.py
+++ b/demo1_getting_started.py
@@ -50,7 +50,8 @@ PROJECT_NETWORK = 'CloudComp' + str(GROUP_NUMBER) + '-net'
 
 # The image to look for and use for the started instance
 # ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+#UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+UBUNTU_IMAGE_NAME = "ubuntu-22.04-jammy-x86_64"
 
 # default region
 REGION_NAME = 'RegionOne'
diff --git a/demo2_instance_with_init_script.py b/demo2_instance_with_init_script.py
index 881ee9c3f85377068414a3b392418924ce6d22ef..745b1402189439355b62de16acd2116504534c61 100644
--- a/demo2_instance_with_init_script.py
+++ b/demo2_instance_with_init_script.py
@@ -49,7 +49,8 @@ PROJECT_NETWORK = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 # ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+#UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+UBUNTU_IMAGE_NAME = "ubuntu-22.04-jammy-x86_64"
 
 # The public key to be used for SSH connection, please make sure, that you have the
 # corresponding private key
diff --git a/demo3_microservice.py b/demo3_microservice.py
index 1fbb48b36ee9002006e5afc4a570a022684ef605..a00c514cfe0d6056a876bedb19be0c04d503dcc5 100644
--- a/demo3_microservice.py
+++ b/demo3_microservice.py
@@ -47,7 +47,8 @@ PROJECT_NETWORK = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 # ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
-UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+#UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+UBUNTU_IMAGE_NAME = "ubuntu-22.04-jammy-x86_64"
 
 # The public key to be used for SSH connection, please make sure, that you have the
 # corresponding private key
diff --git a/demo4-scale-out-add-worker.py b/demo4-scale-out-add-worker.py
index 6d3630c6e3975f0161aba26e31a2295af311749b..9e182b406b2c44214439872cf9236231825e2906 100644
--- a/demo4-scale-out-add-worker.py
+++ b/demo4-scale-out-add-worker.py
@@ -27,7 +27,8 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 #ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
-ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
+#UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+UBUNTU_IMAGE_NAME = "ubuntu-22.04-jammy-x86_64"
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
diff --git a/demo4-scale-out.py b/demo4-scale-out.py
index 41542264051a8aec74645d4bc5d922a33be9b991..b8b87af99329ea11ddcdcbe641c712fba29f192b 100644
--- a/demo4-scale-out.py
+++ b/demo4-scale-out.py
@@ -27,7 +27,8 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 #ubuntu_image_name = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
-ubuntu_image_name = "Ubuntu 22.04 - Jammy Jellyfish - 64-bit - Cloud Based Image"
+#UBUNTU_IMAGE_NAME = "auto-sync/ubuntu-jammy-22.04-amd64-server-20240319-disk1.img"
+UBUNTU_IMAGE_NAME = "ubuntu-22.04-jammy-x86_64"
 
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key