diff --git a/app/models.py b/app/models.py
index 750ecb7d..633ee704 100644
--- a/app/models.py
+++ b/app/models.py
@@ -758,5 +758,7 @@ class Statistic(SQLModel, table=True):
     id: int | None = Field(default=None, primary_key=True)
     type: StatisticType = Field(sa_column=Column(Enum(StatisticType, name="statistic_type")))
     data: dict[str, Any] = Field(default={}, sa_column=Column(JSON))
-    created_at: datetime | None = Field(sa_column=Column(DateTime(timezone=True), nullable=False, onupdate=func.now()))
+    created_at: datetime | None = Field(
+        sa_column=Column(DateTime(timezone=True), nullable=False, default=datetime.utcnow(), server_default=func.now())
+    )
     lender_id: int | None = Field(foreign_key="lender.id", nullable=True)
diff --git a/app/utils/statistics.py b/app/utils/statistics.py
index 571662d4..c3923541 100644
--- a/app/utils/statistics.py
+++ b/app/utils/statistics.py
@@ -70,7 +70,6 @@ def update_statistics(db_provider: Callable[[], Generator[Session, None, None]]
                 statistic_kpi_data = Statistic(
                     type=StatisticType.APPLICATION_KPIS,
                     data=statistic_kpis,
-                    created_at=datetime.now(),
                 )
                 session.add(statistic_kpi_data)
 
@@ -103,7 +102,6 @@ def update_statistics(db_provider: Callable[[], Generator[Session, None, None]]
                 statistic_opt_data = Statistic(
                     type=StatisticType.MSME_OPT_IN_STATISTICS,
                     data=statistics_msme_opt_in,
-                    created_at=datetime.now(),
                 )
                 session.add(statistic_opt_data)
 
@@ -133,7 +131,6 @@ def update_statistics(db_provider: Callable[[], Generator[Session, None, None]]
                         type=StatisticType.APPLICATION_KPIS,
                         data=statistic_kpis,
                         lender_id=lender_id,
-                        created_at=datetime.now(),
                     )
 
                 session.add(statistic_kpi_data)
diff --git a/migrations/versions/385fb9a01efc_add_single_column_indexes_for_slow_.py b/migrations/versions/385fb9a01efc_add_single_column_indexes_for_slow_.py
index 85801898..18e742e1 100644
--- a/migrations/versions/385fb9a01efc_add_single_column_indexes_for_slow_.py
+++ b/migrations/versions/385fb9a01efc_add_single_column_indexes_for_slow_.py
@@ -6,6 +6,7 @@
 
 """
 from alembic import op
+from sqlalchemy import text
 
 # revision identifiers, used by Alembic.
 revision = "385fb9a01efc"
@@ -17,7 +18,7 @@
 def index_exists(name):
     connection = op.get_bind()
     result = connection.execute(
-        "SELECT exists(SELECT 1 from pg_indexes where indexname = '{}') as ix_exists;".format(name)
+        text("SELECT exists(SELECT 1 from pg_indexes where indexname = :indexname) as ix_exists"), {"indexname": name}
     ).first()
     return result.ix_exists