diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 733d623..ecef321 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sqlfluff: ["0.8.2", "0.9.0"]
+        sqlfluff: ["0.8.2", "0.9.0", "0.9.1"]
     steps:
       - uses: actions/checkout@v2
       - uses: ./
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sqlfluff: ["0.8.2", "0.9.0"]
+        sqlfluff: ["0.8.2", "0.9.0", "0.9.1"]
     steps:
       - uses: actions/checkout@v2
       - uses: ./
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sqlfluff: ["0.8.2", "0.9.0"]
+        sqlfluff: ["0.8.2", "0.9.0", "0.9.1"]
     steps:
       - uses: actions/checkout@v2
       - uses: ./
diff --git a/README.md b/README.md
index 68186c3..9ea5bba 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The action automatically leaves comments about SQL violation using [reviewdog](h
 
 ## NOTE
 If you use dbt v0, `sqlfluff_version` has to be `0.8.2` because `sqlfluff==0.8.2` doesn't support dbt v1.
-If you use dbt v1, `sqlfluff_version` can be `0.9.0` which is the latest version at the time of writing the document.
+If you use dbt v1, `sqlfluff_version` can be `0.9.0` or later.
 
 ## Input
 
@@ -60,7 +60,7 @@ inputs:
       sqlfluff version. Use the latest version if not set.
       It must be 0.8.2 or later.
     required: false
-    default: '0.9.0'
+    default: '0.9.1'
   paths:
     description: |
       PATH is the path to a sql file or directory to lint.
@@ -162,7 +162,7 @@ jobs:
         with:
           github_token: ${{ secrets.github_token }}
           reporter: github-pr-review
-          sqlfluff_version: "0.9.0"
+          sqlfluff_version: "0.9.1"
           config: "${{ github.workspace }}/.sqlfluff"
           paths: '${{ github.workspace }}/models'
       - name: 'Show outputs (Optional)'
diff --git a/action.yml b/action.yml
index 6b72d10..48d223e 100644
--- a/action.yml
+++ b/action.yml
@@ -41,7 +41,7 @@ inputs:
       sqlfluff version. Use the latest version if not set.
       It must be 0.8.2 or later.
     required: false
-    default: '0.9.0'
+    default: '0.9.1'
   paths:
     description: |
       PATH is the path to a sql file or directory to lint.