diff --git a/backend/packages/Upgrade/src/api/models/FeatureFlagExposure.ts b/backend/packages/Upgrade/src/api/models/FeatureFlagExposure.ts
index 2cf2111003..3632563742 100644
--- a/backend/packages/Upgrade/src/api/models/FeatureFlagExposure.ts
+++ b/backend/packages/Upgrade/src/api/models/FeatureFlagExposure.ts
@@ -7,11 +7,11 @@ import { ExperimentUser } from './ExperimentUser';
 export class FeatureFlagExposure extends BaseModel {
   // Define primary column for the foreign key
   @PrimaryColumn()
-  featureFlagId: number;
+  featureFlagId: string;
 
   // Define primary column for the foreign key
   @PrimaryColumn()
-  experimentUserId: number;
+  experimentUserId: string;
 
   @Index()
   @ManyToOne(() => FeatureFlag, { onDelete: 'CASCADE' })
diff --git a/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentExclusion.ts b/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentExclusion.ts
index 104a89c4bf..ab7ffe005f 100644
--- a/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentExclusion.ts
+++ b/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentExclusion.ts
@@ -7,10 +7,10 @@ import { Segment } from './Segment';
 export class FeatureFlagSegmentExclusion extends BaseModel {
   // Define primary columns for the foreign keys
   @PrimaryColumn()
-  segmentId: number;
+  segmentId: string;
 
   @PrimaryColumn()
-  featureFlagId: number;
+  featureFlagId: string;
 
   // Establish OneToOne relationship without 'primary'
   @OneToOne(() => Segment, (segment) => segment.featureFlagSegmentExclusion, {
diff --git a/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentInclusion.ts b/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentInclusion.ts
index 2619e3ff3f..2ce536ac3d 100644
--- a/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentInclusion.ts
+++ b/backend/packages/Upgrade/src/api/models/FeatureFlagSegmentInclusion.ts
@@ -7,10 +7,10 @@ import { Segment } from './Segment';
 export class FeatureFlagSegmentInclusion extends BaseModel {
   // Define primary columns for the foreign keys
   @PrimaryColumn()
-  segmentId: number;
+  segmentId: string;
 
   @PrimaryColumn()
-  featureFlagId: number;
+  featureFlagId: string;
 
   // Establish OneToOne relationship without 'primary'
   @OneToOne(() => Segment, (segment) => segment.featureFlagSegmentInclusion, {