diff --git a/ci/install-lint-deps.sh b/ci/install-lint-deps.sh
index 82de250..e819842 100755
--- a/ci/install-lint-deps.sh
+++ b/ci/install-lint-deps.sh
@@ -4,4 +4,4 @@ set -euo pipefail
 sudo apt-get update
 sudo apt-get install -y --no-install-recommends shellcheck
 
-sudo gem install mdl
+sudo npm install -g markdownlint-cli
diff --git a/ci/lint-aux.sh b/ci/lint-aux.sh
index 06a7807..8f8ff7d 100755
--- a/ci/lint-aux.sh
+++ b/ci/lint-aux.sh
@@ -29,4 +29,4 @@ echo "Checking shell scripts with shellcheck"
 find . -type f -name "*.sh" -not -path "./.git/*" -print0 | xargs -0 shellcheck
 
 echo "Checking markdown documents with markdownlint"
-find . -type f -name "*.md" -not -path "./.git/*" -print0 | xargs -0 mdl
+find . -type f -name "*.md" -not -path "./.git/*" -print0 | xargs -0 markdownlint