diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index ee05a42..9d957bf 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use Carbon\CarbonImmutable;
+use Illuminate\Database\Eloquent\Relations\Relation;
 use Illuminate\Http\Resources\Json\JsonResource;
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Facades\DB;
@@ -26,6 +27,13 @@ class AppServiceProvider extends ServiceProvider
     {
         JsonResource::withoutWrapping();
         $this->configureDefaults();
+        
+        Relation::morphMap([
+            'user' => \App\Models\User::class,
+            'dynamic' => \App\Models\Dynamic::class,
+            'ledger' => \App\Models\Ledger::class,
+            'mutation' => \App\Models\Mutation::class,
+        ]);
     }
 
     /**
diff --git a/database/migrations/2026_06_23_091537_update_existing_messages_morph_types.php b/database/migrations/2026_06_23_091537_update_existing_messages_morph_types.php
new file mode 100644
index 0000000..9eb3c8e
--- /dev/null
+++ b/database/migrations/2026_06_23_091537_update_existing_messages_morph_types.php
@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('messages', function (Blueprint $table) {
+            DB::table('messages')->where('subject_type', 'App\\Models\\User')->update(['subject_type' => 'user']);
+            DB::table('messages')->where('subject_type', 'App\\Models\\Mutation')->update(['subject_type' => 'mutation']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('messages', function (Blueprint $table) {
+            DB::table('messages')->where('subject_type', 'user')->update(['subject_type' => 'App\\Models\\User']);
+            DB::table('messages')->where('subject_type', 'mutation')->update(['subject_type' => 'App\\Models\\Mutation']);
+        });
+    }
+};
diff --git a/resources/js/components/Chat.vue b/resources/js/components/Chat.vue
index 03e2c95..694fe82 100644
--- a/resources/js/components/Chat.vue
+++ b/resources/js/components/Chat.vue
@@ -202,16 +202,16 @@ function parseMessageContent(message: {
     // 2. Link subjects if found in the text
     if (message.subject_id && message.subject_type) {
         if (
-            message.subject_type === 'App\\Models\\Mutation' ||
-            message.subject_type === 'App\\Models\\Ledger'
+            message.subject_type === 'mutation' ||
+            message.subject_type === 'ledger'
         ) {
             const ledgerId =
-                message.subject_type === 'App\\Models\\Mutation'
+                message.subject_type === 'mutation'
                     ? message.subject?.ledger_id
                     : message.subject?.id;
 
             const ledgerName =
-                message.subject_type === 'App\\Models\\Mutation'
+                message.subject_type === 'mutation'
                     ? message.subject?.ledger?.name
                     : message.subject?.name;