diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index d44c161..4b87f27 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -21,14 +21,14 @@ jobs:
 
     steps:
       - name: Checkout GLPI core (shallow)
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: glpi-project/glpi
           ref: 11.0/bugfixes
           path: glpi
 
       - name: Checkout plugin
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: glpi/plugins/timelineticket
 
@@ -91,14 +91,14 @@ jobs:
 
     steps:
       - name: Checkout GLPI core
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: glpi-project/glpi
           ref: 11.0/bugfixes
           path: glpi
 
       - name: Checkout plugin
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           path: glpi/plugins/timelineticket