diff --git a/onadata/apps/logger/migrations/0012_add_instance_history_uuid_and_checksum_idx.py b/onadata/apps/logger/migrations/0012_add_instance_history_uuid_and_checksum_idx.py
new file mode 100644
index 0000000000..6a6e6d37a5
--- /dev/null
+++ b/onadata/apps/logger/migrations/0012_add_instance_history_uuid_and_checksum_idx.py
@@ -0,0 +1,40 @@
+# Generated by Django 3.2.23 on 2024-03-07 06:57
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    atomic = False
+
+    dependencies = [
+        ('logger', '0011_add_xform_id_instance_id_idx'),
+    ]
+
+    operations = [
+        migrations.SeparateDatabaseAndState(
+            database_operations=[
+                migrations.RunSQL(
+                    sql='CREATE INDEX CONCURRENTLY "logger_inst_hist_checksum_05f7bf_idx" ON "logger_instancehistory" ("checksum");',
+                    reverse_sql='DROP INDEX "logger_inst_hist_checksum_05f7bf_idx";',
+                ),
+                migrations.RunSQL(
+                    sql='CREATE INDEX CONCURRENTLY "logger_inst_hist_uuid_f5ae42_idx" ON "logger_instancehistory" ("uuid");',
+                    reverse_sql='DROP INDEX "logger_inst_hist_uuid_f5ae42_idx";',
+                ),
+            ],
+            state_operations=[
+                migrations.AddIndex(
+                    model_name='instancehistory',
+                    index=models.Index(
+                        fields=['checksum'], name='logger_inst_hist_checksum_05f7bf_idx'
+                    ),
+                ),
+                migrations.AddIndex(
+                    model_name='instancehistory',
+                    index=models.Index(
+                        fields=['uuid'], name='logger_inst_hist_uuid_f5ae42_idx'
+                    ),
+                ),
+            ],
+        )
+    ]
diff --git a/onadata/apps/logger/models/instance.py b/onadata/apps/logger/models/instance.py
index c33addd711..dfe6337b55 100644
--- a/onadata/apps/logger/models/instance.py
+++ b/onadata/apps/logger/models/instance.py
@@ -901,13 +901,13 @@ class Meta:
 
     xml = models.TextField()
     # old instance id
-    uuid = models.CharField(max_length=249, default="")
+    uuid = models.CharField(max_length=249, default="", db_index=True)
 
     date_created = models.DateTimeField(auto_now_add=True)
     date_modified = models.DateTimeField(auto_now=True)
     submission_date = models.DateTimeField(null=True, default=None)
     geom = models.GeometryCollectionField(null=True)
-    checksum = models.CharField(max_length=64, null=True, blank=True)
+    checksum = models.CharField(max_length=64, null=True, blank=True, db_index=True)
 
     @property
     def xform(self):