diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d3bfe1..8606e43 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -205,7 +205,7 @@ jobs:
           ./bin/linux_amd64/crossplane generate-docs -o ./docs/content/master/cli/command-reference.md
 
       - name: Run Vale
-        uses: vale-cli/vale-action@v2.1.1
+        uses: vale-cli/vale-action@d89dee975228ae261d22c15adcd03578634d429c # v2.1.1
         with:
           version: "3.14.2"
           files: ./docs/content/master/cli/command-reference.md