diff --git a/components/schemas/environments/services/discovery/DiscoveryConfig.yml b/components/schemas/environments/services/discovery/DiscoveryConfig.yml
index 86e58e04..7c5bcb6e 100644
--- a/components/schemas/environments/services/discovery/DiscoveryConfig.yml
+++ b/components/schemas/environments/services/discovery/DiscoveryConfig.yml
@@ -9,12 +9,16 @@ properties:
     nullable: true
     additionalProperties:
       type: object
-      properties: 
-        ipv4: 
+      properties:
+        ipv4:
           description: The IPv4 address the discovery server should return to any container instance requesting this hostname.
-          type: string
           nullable: true
-        ipv6: 
+          type: array
+          items:
+            type: string
+        ipv6:
           description: The IPv6 address the discovery server should return to any container instance requesting this hostname.
-          type: string
           nullable: true
+          type: array
+          items:
+            type: string
diff --git a/components/schemas/stacks/spec/StackSpec.yml b/components/schemas/stacks/spec/StackSpec.yml
index ebbe8ef8..e9d00050 100644
--- a/components/schemas/stacks/spec/StackSpec.yml
+++ b/components/schemas/stacks/spec/StackSpec.yml
@@ -38,6 +38,26 @@ properties:
     nullable: true
     type: object
     properties:
+      discovery:
+        type: object
+        nullable: true
+        properties:
+          hosts:
+            nullable: true
+            type: object
+            additionalProperties:
+              type: object
+              properties:
+                ipv4:
+                  nullable: true
+                  type: array
+                  items:
+                    type: string
+                ipv6:
+                  nullable: true
+                  type: array
+                  items:
+                    type: string
       loadbalancer:
         $ref: services/loadbalancer/StackSpecLoadBalancerConfig.yml
       vpn: