diff --git a/.github/workflows/lint_readme.yml b/.github/workflows/lint_readme.yml
index 22ae9e2aa..aeec00208 100644
--- a/.github/workflows/lint_readme.yml
+++ b/.github/workflows/lint_readme.yml
@@ -21,7 +21,7 @@ jobs:
         # Lints Markdown for formatting/spelling
         # Pinned to SHA for security (was @v19)
         # yamllint disable rule:line-length
-        uses: "DavidAnson/markdownlint-cli2-action@ce4853d43830c74c1753b39f3cf40f71c2031eb9"
+        uses: "DavidAnson/markdownlint-cli2-action@6b51ade7a9e4a75a7ad929842dd298a3804ebe8b"
         # yamllint enable rule:line-length
         with:
           config: ".markdownlint-cli2.yaml"