diff --git a/.github/workflows/markdown-checks.yaml b/.github/workflows/markdown-checks.yaml
index d60f89f..89fe01f 100644
--- a/.github/workflows/markdown-checks.yaml
+++ b/.github/workflows/markdown-checks.yaml
@@ -47,7 +47,7 @@ jobs:
         npm install \
           --no-package-lock \
           --no-save \
-          markdownlint-cli markdownlint-rule-titlecase markdownlint-rule-helpers
+          markdownlint-cli@0.27 markdownlint-rule-titlecase markdownlint-rule-helpers@0.18
 
     - id: run_linter
       if: steps.check_files_changed.outputs.changed_files