diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 200c1ee41363..f35e7e1c4f13 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -141,6 +141,7 @@ jobs:
           timeout_minutes: 5
           max_attempts: 5
           command: composer require guzzlehttp/psr7:^2.4 --no-interaction --no-update
+          shell: powershell
 
       - name: Set PHPUnit
         uses: nick-fields/retry@v3
@@ -148,6 +149,7 @@ jobs:
           timeout_minutes: 5
           max_attempts: 5
           command: composer require phpunit/phpunit:^${{ matrix.phpunit }} --dev --no-interaction --no-update
+          shell: powershell
 
       - name: Install dependencies
         uses: nick-fields/retry@v3