diff --git a/.github/workflows/manifest-PR.yml b/.github/workflows/manifest-PR.yml
index df3d51471aa..2f6fcc77d6a 100644
--- a/.github/workflows/manifest-PR.yml
+++ b/.github/workflows/manifest-PR.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: handle manifest PR
-        uses: nrfconnect/action-manifest-pr@main
+        uses: nrfconnect/action-manifest-pr@rebaseOnUpdates
         with:
           token: ${{ secrets.NCS_GITHUB_TOKEN }}
           manifest-pr-title-details: ${{ github.event.pull_request.title }}
diff --git a/samples/arch/mpu/mpu_test/src/main.c b/samples/arch/mpu/mpu_test/src/main.c
index c850a9dd902..36762c6b171 100644
--- a/samples/arch/mpu/mpu_test/src/main.c
+++ b/samples/arch/mpu/mpu_test/src/main.c
@@ -5,7 +5,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 #include <stdlib.h>
-
+/* dummy PR to check workflows*/
 #include <zephyr/kernel.h>
 #include <zephyr/device.h>
 #include <zephyr/devicetree.h>
diff --git a/samples/basic/blinky/src/main.c b/samples/basic/blinky/src/main.c
index 4cab4969d94..68243dc4c93 100644
--- a/samples/basic/blinky/src/main.c
+++ b/samples/basic/blinky/src/main.c
@@ -3,7 +3,8 @@
  *
  * SPDX-License-Identifier: Apache-2.0
  */
-
+/*checking if workflow rebase sdk-nrf-testing*/
+/*stest12*/
 #include <stdio.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/gpio.h>