diff --git a/README.md b/README.md
index 78239a7..b1774de 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ A GitHub action for styling files with [prettier](https://prettier.io).
 | - | :-: | :-: | - |
 | dry | :x: | `false` | Runs the action in dry mode. Files wont get changed and the action fails if there are unprettified files. Recommended to use with prettier_options --check |
 | prettier_version | :x: | `false` | Specific prettier version (by default use latest) |
+| working_directory | :x: | `false` | Specify a directory to cd into before installing prettier and running it |
 | prettier_options | :x: | `"--write **/*.js"` | Prettier options (by default it applies to the whole repository) |
 | commit_options | :x: | - | Custom git commit options |
 | push_options | :x: | - | Custom git push options |
diff --git a/action.yml b/action.yml
index 691269a..c709804 100644
--- a/action.yml
+++ b/action.yml
@@ -38,6 +38,10 @@ inputs:
     description: Specific version of prettier (by default just use the latest version)
     required: false
     default: false
+  working_directory:
+    description: Specify a directory to cd into before installing prettier and running it
+    required: false
+    default: false
   only_changed:
     description: Only prettify files changed in the last commit, can't be used with file_pattern!
     required: false
@@ -45,13 +49,12 @@ inputs:
   prettier_plugins:
     description: Install Prettier plugins, i.e. `@prettier/plugin-php @prettier/plugin-other`
     required: false
-    default: ''
+    default: ""
   github_token:
     description: GitHub Token or PAT token used to authenticate against a repository
     required: false
     default: ${{ github.token }}
 
-
 runs:
   using: "composite"
   steps:
@@ -71,6 +74,7 @@ runs:
         INPUT_PRETTIER_VERSION: ${{ inputs.prettier_version }}
         INPUT_ONLY_CHANGED: ${{ inputs.only_changed }}
         INPUT_PRETTIER_PLUGINS: ${{ inputs.prettier_plugins }}
+        INPUT_WORKING_DIRECTORY: ${{ inputs.working_directory }}
         INPUT_GITHUB_TOKEN: ${{ inputs.github_token }}
 
 branding:
diff --git a/entrypoint.sh b/entrypoint.sh
index b0b08ec..88f2df6 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -37,6 +37,14 @@ cd "$GITHUB_ACTION_PATH"
 
 echo "Installing prettier..."
 
+case $INPUT_WORKING_DIRECTORY in
+    false)
+        ;;
+    *)
+        cd $INPUT_WORKING_DIRECTORY
+        ;;
+esac
+
 case $INPUT_PRETTIER_VERSION in
     false)
         npm install --silent prettier