diff --git a/.github/workflows/unit_tests_with_released_puppet_gem.yaml b/.github/workflows/unit_tests_with_released_puppet_gem.yaml
index d185449..b66476c 100644
--- a/.github/workflows/unit_tests_with_released_puppet_gem.yaml
+++ b/.github/workflows/unit_tests_with_released_puppet_gem.yaml
@@ -17,7 +17,7 @@ jobs:
         include:
           - puppet_version: '7'
             ruby: '2.7'
-            puppet_forge_token: ''
+            puppet_forge_token: ${{ null }}
           - puppet_version: '8'
             ruby: '3.1'
             puppet_forge_token: 'YES'