diff --git a/actions/get-package-manager/action.yml b/actions/get-package-manager/action.yml
index cd8a0a8..944f9a3 100644
--- a/actions/get-package-manager/action.yml
+++ b/actions/get-package-manager/action.yml
@@ -90,7 +90,10 @@ runs:
             core.debug(`Package manager from lock files: ${packageManagerName}`);
           }
 
-          const relativeWorkingDirectory = path.relative(process.env.GITHUB_WORKSPACE, workingDirectory) || '.';
+          let relativeWorkingDirectory = path.relative(process.env.GITHUB_WORKSPACE, workingDirectory) || '.';
+          if (relativeWorkingDirectory.startsWith('../')) {
+            relativeWorkingDirectory = path.resolve(workingDirectory);
+          }
 
           const packageManagerConfig = {
             yarn: {