diff --git a/.github/workflows/act-validation.yml b/.github/workflows/act-validation.yml
index cd4d519..b23476f 100644
--- a/.github/workflows/act-validation.yml
+++ b/.github/workflows/act-validation.yml
@@ -126,6 +126,6 @@ jobs:
         # `markdown-formatting-baseline` rule requires. The action reads
         # .markdownlint-cli2.jsonc from the workspace, so its rules and ignores
         # match `make fmt`.
-        uses: DavidAnson/markdownlint-cli2-action@21c1be1b93ad9ed58fa840aacc3f279cde2a72ff  # v24.2.0
+        uses: DavidAnson/markdownlint-cli2-action@696eb3f2509270d7b882d2aa68347bc676e7af34  # v25.0.0
         with:
           globs: '**/*.md'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0d2d165..dfe9f2f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -72,7 +72,7 @@ jobs:
         # resolved from the registry at run time, and Dependabot manages the
         # pin alongside the other actions. It reads .markdownlint-cli2.jsonc
         # from the workspace, so the rules and ignores match `make markdownlint`.
-        uses: DavidAnson/markdownlint-cli2-action@21c1be1b93ad9ed58fa840aacc3f279cde2a72ff  # v24.2.0
+        uses: DavidAnson/markdownlint-cli2-action@696eb3f2509270d7b882d2aa68347bc676e7af34  # v25.0.0
         with:
           globs: '**/*.md'