diff --git a/.github/workflows/openapi-validation.yml b/.github/workflows/openapi-validation.yml
index 7401492..d912b9c 100644
--- a/.github/workflows/openapi-validation.yml
+++ b/.github/workflows/openapi-validation.yml
@@ -11,6 +11,6 @@ jobs:
         with:
           fetch-depth: 0
       - name: 🧪 Validate OpenAPI definition
-        uses: char0n/swagger-editor-validate@v1
+        uses: char0n/swagger-editor-validate@fe35d650e9fc674505607519d0d12ab4de5d415d # v1
         with:
           definition-file: docs/openapi.json