diff --git a/index.js b/index.js
index 803900c..1f1cbfe 100644
--- a/index.js
+++ b/index.js
@@ -714,7 +714,7 @@ function build_where(req, c, w, d, args) {
     if (req.body.stamp) {
         w = w +
             `
-            AND order_date >= least('` + req.body.stamp + "'::date,'2022-06-01')";
+            AND order_date >= least('` + req.body.stamp + "'::date,'2021-06-01')";
     }
     return { c, w, d };
 }