diff --git a/core/src/main/java/google/registry/model/domain/token/PackagePromotion.java b/core/src/main/java/google/registry/model/domain/token/PackagePromotion.java
index f0db57fd4..3b209ede3 100644
--- a/core/src/main/java/google/registry/model/domain/token/PackagePromotion.java
+++ b/core/src/main/java/google/registry/model/domain/token/PackagePromotion.java
@@ -29,6 +29,8 @@ import java.util.Optional;
 import javax.annotation.Nullable;
 import javax.persistence.Column;
 import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import org.hibernate.annotations.Columns;
 import org.hibernate.annotations.Type;
@@ -41,7 +43,9 @@ import org.joda.time.DateTime;
 public class PackagePromotion extends ImmutableObject implements Buildable {
 
   /** An autogenerated identifier for the package promotion. */
-  @Id long packagePromotionId;
+  @Id
+  @GeneratedValue(strategy = GenerationType.IDENTITY)
+  long packagePromotionId;
 
   /** The allocation token string for the package. */
   @Column(nullable = false)
diff --git a/core/src/test/java/google/registry/model/domain/token/PackagePromotionTest.java b/core/src/test/java/google/registry/model/domain/token/PackagePromotionTest.java
index 3f02b20ef..a856ddbc9 100644
--- a/core/src/test/java/google/registry/model/domain/token/PackagePromotionTest.java
+++ b/core/src/test/java/google/registry/model/domain/token/PackagePromotionTest.java
@@ -15,8 +15,9 @@
 package google.registry.model.domain.token;
 
 import static com.google.common.truth.Truth.assertThat;
+import static google.registry.model.ImmutableObjectSubject.assertAboutImmutableObjects;
+import static google.registry.persistence.transaction.TransactionManagerFactory.jpaTm;
 import static google.registry.testing.DatabaseHelper.createTld;
-import static google.registry.testing.DatabaseHelper.loadByEntity;
 import static google.registry.testing.DatabaseHelper.persistResource;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -57,16 +58,18 @@ public class PackagePromotionTest extends EntityTestCase {
                 .build());
 
     PackagePromotion packagePromotion =
-        persistResource(
-            new PackagePromotion.Builder()
-                .setToken(token)
-                .setPackagePrice(Money.of(CurrencyUnit.USD, 10000))
-                .setMaxCreates(40)
-                .setMaxDomains(10)
-                .setNextBillingDate(DateTime.parse("2011-11-12T05:00:00Z"))
-                .build());
+        new PackagePromotion.Builder()
+            .setToken(token)
+            .setPackagePrice(Money.of(CurrencyUnit.USD, 10000))
+            .setMaxCreates(40)
+            .setMaxDomains(10)
+            .setNextBillingDate(DateTime.parse("2011-11-12T05:00:00Z"))
+            .build();
 
-    assertThat(loadByEntity(packagePromotion)).isEqualTo(packagePromotion);
+    jpaTm().transact(() -> jpaTm().put(packagePromotion));
+    assertAboutImmutableObjects()
+        .that(jpaTm().transact(() -> PackagePromotion.loadByTokenString("abc123")).get())
+        .isEqualExceptFields(packagePromotion, "packagePromotionId");
   }
 
   @Test
diff --git a/core/src/test/java/google/registry/tools/UpdatePackagePromotionCommandTest.java b/core/src/test/java/google/registry/tools/UpdatePackagePromotionCommandTest.java
index db0506955..e68f04470 100644
--- a/core/src/test/java/google/registry/tools/UpdatePackagePromotionCommandTest.java
+++ b/core/src/test/java/google/registry/tools/UpdatePackagePromotionCommandTest.java
@@ -58,7 +58,7 @@ public class UpdatePackagePromotionCommandTest
             .setNextBillingDate(DateTime.parse("2012-11-12T05:00:00Z"))
             .setLastNotificationSent(DateTime.parse("2010-11-12T05:00:00Z"))
             .build();
-    persistResource(packagePromotion);
+    jpaTm().transact(() -> jpaTm().put(packagePromotion));
   }
 
   @Test
diff --git a/db/src/main/resources/sql/schema/db-schema.sql.generated b/db/src/main/resources/sql/schema/db-schema.sql.generated
index b48a6f75a..34bbe0906 100644
--- a/db/src/main/resources/sql/schema/db-schema.sql.generated
+++ b/db/src/main/resources/sql/schema/db-schema.sql.generated
@@ -492,7 +492,7 @@
     );
 
     create table "PackagePromotion" (
-       package_promotion_id int8 not null,
+       package_promotion_id  bigserial not null,
         last_notification_sent timestamptz,
         max_creates int4 not null,
         max_domains int4 not null,