diff --git a/cmake/templates/opencv_run_all_tests_unix.sh.in b/cmake/templates/opencv_run_all_tests_unix.sh.in
index 2e1b167738..cb045945fc 100644
--- a/cmake/templates/opencv_run_all_tests_unix.sh.in
+++ b/cmake/templates/opencv_run_all_tests_unix.sh.in
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Text style