diff --git a/__tests__/helpers/github-workflow-schema.json b/__tests__/helpers/github-workflow-schema.json
index 50a6a89b0..fd746836e 100644
--- a/__tests__/helpers/github-workflow-schema.json
+++ b/__tests__/helpers/github-workflow-schema.json
@@ -327,7 +327,7 @@
             "fail-fast": {
               "$comment": "https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions#jobsjob_idstrategyfail-fast",
               "description": "When set to true, GitHub cancels all in-progress jobs if any matrix job fails. Default: true",
-              "type": "boolean",
+              "type": ["boolean", "string"],
               "default": true
             },
             "max-parallel": {
@@ -571,7 +571,7 @@
             "fail-fast": {
               "$comment": "https://help.github.com/en/actions/automating-your-workflow-with-github-actions/workflow-syntax-for-github-actions#jobsjob_idstrategyfail-fast",
               "description": "When set to true, GitHub cancels all in-progress jobs if any matrix job fails. Default: true",
-              "type": "boolean",
+              "type": ["boolean", "string"],
               "default": true
             },
             "max-parallel": {