diff --git a/.github/workflows/validate_arch_config.yml b/.github/workflows/validate_arch_config.yml
index 6ac844d4..9503dad2 100644
--- a/.github/workflows/validate_arch_config.yml
+++ b/.github/workflows/validate_arch_config.yml
@@ -28,4 +28,4 @@ jobs:
 
       - name: validate arch config
         run: |
-          sh arch/validate_arch_config.sh
+          bash arch/validate_arch_config.sh
diff --git a/arch/validate_arch_config.sh b/arch/validate_arch_config.sh
index ccc119c0..a3822e90 100644
--- a/arch/validate_arch_config.sh
+++ b/arch/validate_arch_config.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 failed_files=()