diff --git a/.env.local b/.env.local
index bc05b1ef..e7302313 100644
--- a/.env.local
+++ b/.env.local
@@ -1,2 +1,2 @@
 # 环境变量 @see https://www.nextjs.cn/docs/basic-features/environment-variables
-NEXT_PUBLIC_VERSION=3.9.5
+NEXT_PUBLIC_VERSION=3.9.6
diff --git a/package.json b/package.json
index 24bdccc5..514032aa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "notion-next",
-  "version": "3.9.5",
+  "version": "3.9.6",
   "homepage": "https://github.com/tangly1024/NotionNext.git",
   "license": "MIT",
   "repository": {
diff --git a/styles/notion.css b/styles/notion.css
index 0f8f5ad8..c8cf2ebf 100644
--- a/styles/notion.css
+++ b/styles/notion.css
@@ -2000,4 +2000,8 @@ code.language-mermaid {
 
 .code-toolbar{
   @apply w-full shadow-md;
+}
+
+.mermaid > {
+  margin: auto;
 }
\ No newline at end of file