diff --git a/README.md b/README.md
index 0a9fb93..d89bd54 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,8 @@ files with the `md` or `markdown` extension.
 - uses: articulate/actions-markdownlint@v1
 ```
 
-You can set the config file, the files it scans, or files/directories to ignore.
+You can set the config file, the files it scans, files/directories to ignore, or
+the version of markdownlint-cli to install.
 
 ```yaml
 - uses: articulate/actions-markdownlint@v1
@@ -20,4 +21,5 @@ You can set the config file, the files it scans, or files/directories to ignore.
     config: markdownlint-config.json
     files: 'docs/**/*.md'
     ignore: node_modules
+    version: 0.28.1
 ```
diff --git a/action.yml b/action.yml
index 2c03fc4..aaf94b8 100644
--- a/action.yml
+++ b/action.yml
@@ -2,6 +2,9 @@ name: markdown-lint
 author: Articulate Global Inc.
 description: Lint your markdown
 inputs:
+  version:
+    description: Version of markdownlint-cli to use
+    required: false
   config:
     description: markdownlint config file
     required: false
diff --git a/entrypoint.sh b/entrypoint.sh
index 28d9690..a29e8c8 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,5 +1,10 @@
 #!/bin/sh
 
+if [ -n "$INPUT_VERSION" ]; then
+    echo "::debug::installing markdownlint-cli ${INPUT_VERSION}"
+    npm install --global --production "markdownlint-cli@${INPUT_VERSION}"
+fi
+
 # Copy the matcher to a shared volume with the host; otherwise "add-matcher"
 # can't find it.
 if [ "$INPUT_ANNOTATIONS" != "false" ]; then