diff --git a/src/crags/entities/crag.entity.ts b/src/crags/entities/crag.entity.ts
index f4e8725..bfc7ca7 100644
--- a/src/crags/entities/crag.entity.ts
+++ b/src/crags/entities/crag.entity.ts
@@ -174,7 +174,11 @@ export class Crag extends BaseEntity {
   @Column({ name: 'user_id', nullable: true })
   userId: string;
 
-  @Column({ type: 'int', array: true, nullable: true })
-  @Field(() => [Int], { nullable: true })
+  @Column({
+    type: 'int',
+    array: true,
+    default: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+  })
+  @Field(() => [Int])
   activityByMonth: number[];
 }
diff --git a/src/migration/1696588233248-activityByMonthNonNullable.ts b/src/migration/1696588233248-activityByMonthNonNullable.ts
new file mode 100644
index 0000000..022039e
--- /dev/null
+++ b/src/migration/1696588233248-activityByMonthNonNullable.ts
@@ -0,0 +1,25 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+export class activityByMonthNonNullable1696588233248
+  implements MigrationInterface
+{
+  name = 'activityByMonthNonNullable1696588233248';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE "crag" ALTER COLUMN "activity_by_month" SET NOT NULL`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "crag" ALTER COLUMN "activity_by_month" SET DEFAULT '{0,0,0,0,0,0,0,0,0,0,0,0}'`,
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE "crag" ALTER COLUMN "activity_by_month" DROP DEFAULT`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE "crag" ALTER COLUMN "activity_by_month" DROP NOT NULL`,
+    );
+  }
+}
diff --git a/test/e2e/helpers.ts b/test/e2e/helpers.ts
index 42bbbcc..fdaf2df 100644
--- a/test/e2e/helpers.ts
+++ b/test/e2e/helpers.ts
@@ -378,28 +378,28 @@ const seedDatabase = async (qr: QueryRunner, app) => {
   // Add some crags
   // published crag
   await qr.query(
-    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id)
-    VALUES ('${mockData.crags.publishedCrag.id}', 'Kot Tečnik', '${mockData.crags.publishedCrag.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}')`,
+    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id, activity_by_month)
+    VALUES ('${mockData.crags.publishedCrag.id}', 'Kot Tečnik', '${mockData.crags.publishedCrag.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}', '{0,0,0,0,0,0,0,0,0,0,0,0}')`,
   );
   // in review crag
   await qr.query(
-    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id)
-    VALUES ('${mockData.crags.inReviewCrag.id}', 'Podstenčnik', 'podstencnik', '${mockData.countries.slovenia.id}', 'french', 'sport', 'in_review', false, '${mockData.users.basicUser1.id}')`,
+    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id, activity_by_month)
+    VALUES ('${mockData.crags.inReviewCrag.id}', 'Podstenčnik', 'podstencnik', '${mockData.countries.slovenia.id}', 'french', 'sport', 'in_review', false, '${mockData.users.basicUser1.id}', '{0,0,0,0,0,0,0,0,0,0,0,0}')`,
   );
   // draft crag
   await qr.query(
-    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id)
-    VALUES ('${mockData.crags.draftCrag.id}', 'Nova grapa', 'nova-grapa', '${mockData.countries.slovenia.id}', 'french', 'sport', 'draft', false, '${mockData.users.basicUser1.id}')`,
+    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id, activity_by_month)
+    VALUES ('${mockData.crags.draftCrag.id}', 'Nova grapa', 'nova-grapa', '${mockData.countries.slovenia.id}', 'french', 'sport', 'draft', false, '${mockData.users.basicUser1.id}', '{0,0,0,0,0,0,0,0,0,0,0,0}')`,
   );
   // crag with multiple sectors
   await qr.query(
-    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id)
-    VALUES ('${mockData.crags.cragWithMultipleSectors.id}', 'Cre tata', '${mockData.crags.cragWithMultipleSectors.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}')`,
+    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id, activity_by_month)
+    VALUES ('${mockData.crags.cragWithMultipleSectors.id}', 'Cre tata', '${mockData.crags.cragWithMultipleSectors.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}', '{0,0,0,0,0,0,0,0,0,0,0,0}')`,
   );
   // simple crag
   await qr.query(
-    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id)
-    VALUES ('${mockData.crags.simpleCrag.id}', 'Cragus simplus', '${mockData.crags.simpleCrag.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}')`,
+    `INSERT INTO crag (id, name, slug, country_id, default_grading_system_id, type, publish_status, is_hidden, user_id, activity_by_month)
+    VALUES ('${mockData.crags.simpleCrag.id}', 'Cragus simplus', '${mockData.crags.simpleCrag.slug}', '${mockData.countries.slovenia.id}', 'french', 'sport', 'published', false, '${mockData.users.basicUser1.id}', '{0,0,0,0,0,0,0,0,0,0,0,0}')`,
   );
 
   // Add some sectors