diff --git a/README.md b/README.md
index bd3f7f7..86d8098 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ Setting `denyWarnings` to true will also enable these warnings, but each warning
 | -------------- | ------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------ |
 | `TOKEN`        | The GitHub access token to allow us to retrieve, create and update issues (automatically set).   | `github.token`                                                           |
 | `denyWarnings` | Any warnings generated will be treated as an error and fail the action.                          | false                                                                    |
-| `file`         | The path to the Cargo.lock file.                                                                 | `Cargo.lock`                                                             |
+| `file`         | The path to the Cargo.lock file.                                                                 |                                                                          |
 | `ignore`       | A comma separated list of Rustsec IDs to ignore.                                                 |                                                                          |
 | `createIssues` | Create/Update issues for each found vulnerability. By default only on `main` or `master` branch. | `github.ref == 'refs/heads/master' \|\| github.ref == 'refs/heads/main'` |
 
diff --git a/action.yml b/action.yml
index b61508e..efddd43 100644
--- a/action.yml
+++ b/action.yml
@@ -17,7 +17,7 @@ inputs:
   file:
     description: "Cargo lockfile to inspect"
     required: false
-    default: "Cargo.lock"
+    default: ""
   ignore:
     description: "A comma separated list of Rustsec IDs to ignore"
     required: false