diff --git a/Dockerfile b/Dockerfile
index f1d8e5f..de33217 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,5 @@
-FROM ubuntu:latest
+FROM ubuntu:22.04
+
 
 ENV DEBIAN_FRONTEND=noninteractive
 
diff --git a/README.md b/README.md
index 7fa6a4d..6ffee89 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ jobs:
           botEmail: ${{ secrets.BOT_EMAIL }}
           botGithubToken: ${{ secrets.GITHUB_TOKEN }}
           enableReviewComment: true
-          installGoogleFont: Barlow
+          installGoogleFont: Barlow:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i
 ```
 
 You must set `actions/checkout` before this step, to get source codes.