diff --git a/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-model-introspection-visitor.test.ts.snap b/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-model-introspection-visitor.test.ts.snap
index 4cf3b4d3b..89a16e3f8 100644
--- a/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-model-introspection-visitor.test.ts.snap
+++ b/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-model-introspection-visitor.test.ts.snap
@@ -230,10 +230,7 @@ exports[`Conversation Route Introspection Visitor Metadata snapshot should gener
                         {
                             \\"type\\": \\"model\\",
                             \\"properties\\": {
-                                \\"subscriptions\\": {},
-                                \\"mutations\\": {
-                                    \\"update\\": null
-                                }
+                                \\"subscriptions\\": {}
                             }
                         },
                         {
diff --git a/packages/appsync-modelgen-plugin/src/utils/process-conversation.ts b/packages/appsync-modelgen-plugin/src/utils/process-conversation.ts
index 38190c414..a11e72b9f 100644
--- a/packages/appsync-modelgen-plugin/src/utils/process-conversation.ts
+++ b/packages/appsync-modelgen-plugin/src/utils/process-conversation.ts
@@ -103,8 +103,7 @@ function generateConversationMessageModel(conversationModelName: string, modelNa
       {
         type: 'model',
         properties: {
-          subscriptions: {},
-          mutations: { update: null }
+          subscriptions: {}
         }
       },
       generateAuthAttribute()