diff --git a/.github/workflows/verify-action.yml b/.github/workflows/verify-action.yml
index b1e0fc1..9f05c80 100644
--- a/.github/workflows/verify-action.yml
+++ b/.github/workflows/verify-action.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        buildifier: [5.1.0, 5.0.0, 4.0.0]
+        buildifier: [6.0.0, 5.1.0, 4.0.0]
     steps:
       - name: Setup repository
         uses: actions/checkout@v3
diff --git a/README.md b/README.md
index eed4c0b..390a0e5 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Buildifier automatically checks one of the Bazel's files:
 
 | Name  | Description | Required | Default |
 | --- | --- | --- | --- |
-| version  | The version of the used `buildifier` | `false`| `5.1.0` |
+| version  | The version of the used `buildifier` | `false`| `6.0.0` |
 
 ## Example Usage
 
diff --git a/action.yml b/action.yml
index ca8a6ab..751a08f 100644
--- a/action.yml
+++ b/action.yml
@@ -9,7 +9,7 @@ inputs:
   buildifier-version:
     description: "Buildifier version"
     required: false
-    default: "5.1.0"
+    default: "6.0.0"
   token:
     description: Used to query buildifier releases.
     default: ${{ github.token }}