diff --git a/internal/eventstore/handler/v2/field_handler.go b/internal/eventstore/handler/v2/field_handler.go
index 40e4496e42..8b71f32519 100644
--- a/internal/eventstore/handler/v2/field_handler.go
+++ b/internal/eventstore/handler/v2/field_handler.go
@@ -97,7 +97,7 @@ func (h *FieldHandler) processEvents(ctx context.Context, config *triggerConfig)
 		defer cancel()
 	}
 
-	tx, err := h.client.BeginTx(txCtx, nil)
+	tx, err := h.client.BeginTx(txCtx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
 	if err != nil {
 		return false, err
 	}
diff --git a/internal/eventstore/v3/field.go b/internal/eventstore/v3/field.go
index 1298e59e42..17037f8bcc 100644
--- a/internal/eventstore/v3/field.go
+++ b/internal/eventstore/v3/field.go
@@ -28,7 +28,7 @@ func (es *Eventstore) FillFields(ctx context.Context, events ...eventstore.FillF
 	ctx, span := tracing.NewSpan(ctx)
 	defer span.End()
 
-	tx, err := es.client.BeginTx(ctx, nil)
+	tx, err := es.client.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
 	if err != nil {
 		return err
 	}