diff --git a/grid-proxy/CHANGELOG.md b/grid-proxy/CHANGELOG.md
index db15df589..6f8961075 100644
--- a/grid-proxy/CHANGELOG.md
+++ b/grid-proxy/CHANGELOG.md
@@ -12,7 +12,7 @@ Check `/version` on any instance to know the version.
 
 ## Releases
 
-### v0.15.8
+### v0.15.9
 
 ---
 
diff --git a/grid-proxy/charts/gridproxy/Chart.yaml b/grid-proxy/charts/gridproxy/Chart.yaml
index ed974f30b..803b6e124 100644
--- a/grid-proxy/charts/gridproxy/Chart.yaml
+++ b/grid-proxy/charts/gridproxy/Chart.yaml
@@ -20,6 +20,6 @@ version: 1.0.0
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: 0.15.8
+appVersion: 0.15.9
 
 # make sure to update the changelog with the changes in this release
diff --git a/grid-proxy/internal/explorer/db/postgres.go b/grid-proxy/internal/explorer/db/postgres.go
index af5c235eb..fadc3d812 100644
--- a/grid-proxy/internal/explorer/db/postgres.go
+++ b/grid-proxy/internal/explorer/db/postgres.go
@@ -136,23 +136,25 @@ func (d *PostgresDatabase) GetLastUpsertsTimestamp() (types.IndexersState, error
 }
 
 func (d *PostgresDatabase) Initialize() error {
-	err := d.gormDB.AutoMigrate(
+	if err := d.gormDB.AutoMigrate(
 		&types.NodeGPU{},
 		&types.HealthReport{},
 		&types.Dmi{},
 		&types.Speed{},
 		&types.HasIpv6{},
 		&types.NodesWorkloads{},
-	)
-	if err != nil {
+	); err != nil {
 		return errors.Wrap(err, "failed to migrate indexer tables")
 	}
 
-	err = d.gormDB.Exec(setupFile).Error
-	if err != nil {
+	if err := d.gormDB.Exec(setupFile).Error; err != nil {
 		return errors.Wrap(err, "failed to setup cache tables")
 	}
 
+	if err := d.gormDB.Exec(`ALTER TABLE node_gpu DROP CONSTRAINT IF EXISTS node_gpu_pkey;`).Error; err != nil {
+		return errors.Wrap(err, "failed to drop the node_gpu_pkey constraint")
+	}
+
 	return nil
 }
 
diff --git a/grid-proxy/internal/indexer/health.go b/grid-proxy/internal/indexer/health.go
index cf891e7ba..b1ee68e84 100644
--- a/grid-proxy/internal/indexer/health.go
+++ b/grid-proxy/internal/indexer/health.go
@@ -39,6 +39,8 @@ func (w *HealthWork) Get(ctx context.Context, rmb *peer.RpcClient, twinId uint32
 }
 
 func (w *HealthWork) Upsert(ctx context.Context, db db.Database, batch []types.HealthReport) error {
+	// to prevent having multiple data for the same twin from different finders
+	batch = removeDuplicates(batch)
 	return db.UpsertNodeHealth(ctx, batch)
 }
 
@@ -57,3 +59,16 @@ func getHealthReport(response interface{}, err error, twinId uint32) types.Healt
 	report.Healthy = true
 	return report
 }
+
+func removeDuplicates(reports []types.HealthReport) []types.HealthReport {
+	seen := make(map[uint32]bool)
+	result := []types.HealthReport{}
+	for _, report := range reports {
+		if _, ok := seen[report.NodeTwinId]; !ok {
+			seen[report.NodeTwinId] = true
+			result = append(result, report)
+		}
+	}
+
+	return result
+}