diff --git a/environments/podman.yaml b/environments/podman.yaml
index 818e0e3f67..9d19c93b43 100644
--- a/environments/podman.yaml
+++ b/environments/podman.yaml
@@ -4,5 +4,4 @@ resource_registry:
   OS::TripleO::Services::Podman: ../deployment/podman/podman-baremetal-ansible.yaml
 
 parameter_defaults:
-  MistralDockerGroup: false
   ContainerCli: podman
diff --git a/environments/undercloud.yaml b/environments/undercloud.yaml
index 4a897d61c2..9029d85fc4 100644
--- a/environments/undercloud.yaml
+++ b/environments/undercloud.yaml
@@ -134,8 +134,6 @@ parameter_defaults:
   #   - ip_range: '192.168.24.100,192.168.24.200'
   IronicProvisioningNetwork: 'ctlplane'
   IronicRescuingNetwork: 'ctlplane'
-  MistralCorsAllowedOrigin: '*'
-  MistralExecutionFieldSizeLimit: 16384
   NeutronServicePlugins: router,segments
   NeutronMechanismDrivers: ['openvswitch', 'baremetal']
   NeutronNetworkVLANRanges: 'physnet1:1000:2999'
@@ -181,7 +179,6 @@ parameter_defaults:
   UndercloudCtlplaneSubnets: {}
   UndercloudCtlplaneLocalSubnet: 'ctlplane-subnet'
   UndercloudNetworkConfigTemplate: 'templates/undercloud.j2'
-  MistralDockerGroup: true
   PasswordAuthentication: 'yes'
   HeatEngineOptVolumes:
     - /usr/lib/heat:/usr/lib/heat:ro