diff --git a/lib/tedious/request.js b/lib/tedious/request.js
index 6c6b806e..63af04c7 100644
--- a/lib/tedious/request.js
+++ b/lib/tedious/request.js
@@ -442,12 +442,15 @@ class Request extends BaseRequest {
         debug('request(%d): query', IDS.get(this), command)
 
         const req = new tds.Request(command, err => {
-          // to make sure we handle no-sql errors as well
-          if (err && (!errors.length || (errors.length && err.message !== errors[errors.length - 1].message))) {
-            err = new RequestError(err, 'EREQUEST')
-            if (this.stream) this.emit('error', err)
-            errors.push(err)
-          }
+          // tedious v15 has started using AggregateErrors to wrap multiple errors into single error objects
+          (err?.errors ? err.errors : [err]).forEach((e, i, { length }) => {
+            // to make sure we handle no-sql errors as well
+            if (e && (!errors.length || (errors.length && errors.length >= length && e.message !== errors[errors.length - length + i].message))) {
+              e = new RequestError(e, 'EREQUEST')
+              if (this.stream) this.emit('error', e)
+              errors.push(e)
+            }
+          })
 
           // process batch outputs
           if (batchHasOutput) {