diff --git a/test/tap/tests/reg_test_3992_fast_forward_malformed_packet-pymysql-t.py b/test/tap/tests/reg_test_3992_fast_forward_malformed_packet-pymysql-t.py
index 0f13aace4..7259e0b1a 100644
--- a/test/tap/tests/reg_test_3992_fast_forward_malformed_packet-pymysql-t.py
+++ b/test/tap/tests/reg_test_3992_fast_forward_malformed_packet-pymysql-t.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python33
+#!/usr/bin/env python3
 
 # This is a regression test for issues #3992 and #4047. Test checks if queries
 # are executed successfully with MariaDB server via PyMySQL client having fast