diff --git a/backend/database/factories/EmailActivationFactory.php b/backend/database/factories/EmailActivationFactory.php
index 8040c161..2809fe76 100644
--- a/backend/database/factories/EmailActivationFactory.php
+++ b/backend/database/factories/EmailActivationFactory.php
@@ -23,7 +23,7 @@ class EmailActivationFactory extends Factory
     {   
         return [
             'type' => $this->faker->numberBetween($min=0, $max=1),
-            'father_id' => 1,
+            'father_id' => rand(1, 10),
             'email' => $this->faker->email,
             'token' => $this->faker->creditCardNumber,
             'ttl' => $this->faker->dateTime,
diff --git a/backend/database/factories/FatherRelationFactory.php b/backend/database/factories/FatherRelationFactory.php
index 7ab14438..5aa2f228 100644
--- a/backend/database/factories/FatherRelationFactory.php
+++ b/backend/database/factories/FatherRelationFactory.php
@@ -22,8 +22,8 @@ class FatherRelationFactory extends Factory
     public function definition()
     {
         return [
-            'father_id' => 1,
-            'child_id' => 1,
+            'father_id' => rand(1, 10),
+            'child_id' => rand(1, 10),
             'created_at' => $this->faker->dateTime,
             'updated_at' => $this->faker->dateTime,
         ];
diff --git a/backend/database/factories/MeetingApprovalsFactory.php b/backend/database/factories/MeetingApprovalsFactory.php
index 5876a6f1..0a5a79c3 100644
--- a/backend/database/factories/MeetingApprovalsFactory.php
+++ b/backend/database/factories/MeetingApprovalsFactory.php
@@ -22,8 +22,8 @@ class MeetingApprovalsFactory extends Factory
     public function definition()
     {
         return [
-            'child_id' => 1,
-            'meeting_id' => 1,
+            'child_id' => rand(1, 10),
+            'meeting_id' => rand(1, 10),
             'approval_at' => $this->faker->dateTime,
             'created_at' => $this->faker->dateTime,
             'updated_at' => $this->faker->dateTime,
diff --git a/backend/database/factories/MeetingFactory.php b/backend/database/factories/MeetingFactory.php
index 3a3b06e3..646de736 100644
--- a/backend/database/factories/MeetingFactory.php
+++ b/backend/database/factories/MeetingFactory.php
@@ -22,7 +22,7 @@ class MeetingFactory extends Factory
     public function definition()
     {
         return [
-            'father_id' => 1,
+            'father_id' => rand(1, 10),
             'title' => $this->faker->name,
             'text' => $this->faker->realText(49),
             'pdf' => "https://crowdworks.jp/attachments/36836755.pdf",
diff --git a/backend/database/factories/MeetingImageFactory.php b/backend/database/factories/MeetingImageFactory.php
index 823cb8d5..4734bc52 100644
--- a/backend/database/factories/MeetingImageFactory.php
+++ b/backend/database/factories/MeetingImageFactory.php
@@ -22,7 +22,7 @@ class MeetingImageFactory extends Factory
     public function definition()
     {
         return [
-            'meeting_id' => 1,
+            'meeting_id' => rand(1, 10),
             'image' => "/assets/img/avatar/avatar-sample02@2x.png",
             'created_at' => $this->faker->dateTime,
             'updated_at' => $this->faker->dateTime,
diff --git a/backend/database/factories/TelActivationFactory.php b/backend/database/factories/TelActivationFactory.php
index 9a780f3f..74e55410 100644
--- a/backend/database/factories/TelActivationFactory.php
+++ b/backend/database/factories/TelActivationFactory.php
@@ -29,7 +29,7 @@ class TelActivationFactory extends Factory
 
         return [
             'type' => rand(0, 1),
-            'child_id' => 1,
+            'child_id' => rand(1, 10),
             'tel' => $tel[rand(0, 2)],
             'token' => $this->faker->creditCardNumber,
             'ttl' => $this->faker->dateTime,