diff --git a/action.yml b/action.yml
index 9e73a295..56025a40 100644
--- a/action.yml
+++ b/action.yml
@@ -25,8 +25,6 @@ inputs:
     description: 'Used to specify a package manager for caching in the default directory. Supported values: npm, yarn, pnpm.'
   cache-dependency-path:
     description: 'Used to specify the path to a dependency file: package-lock.json, yarn.lock, etc. Supports wildcards or a list of file names for caching multiple dependencies.'
-  project-dir:
-    description: 'Optional path used as a current working directory during executing package manager commands. Important if project directory is not the same as root.'
 # TODO: add input to control forcing to pull from cloud or dist.
 #       escape valve for someone having issues or needing the absolute latest which isn't cached yet
 outputs:
diff --git a/src/cache-utils.ts b/src/cache-utils.ts
index 5d54cee6..38ea11e5 100644
--- a/src/cache-utils.ts
+++ b/src/cache-utils.ts
@@ -52,10 +52,6 @@ export const getCommandOutput = async (
 };
 
 export const getPackageManagerWorkingDir = (): string | null => {
-  const projectDir = core.getInput('project-dir');
-  if (projectDir) {
-    return projectDir;
-  }
 
   const cache = core.getInput('cache');
   if (cache !== 'yarn') {