diff --git a/mkdocs.yml b/mkdocs.yml
index 31a7fe03..8f4571e6 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -107,13 +107,15 @@ plugins:
       exclude:
         - assets/*
   - i18n:
-      default_language: en
+      fallback_to_default: true
       languages:
-        en:
-          name: English
-          build: false
-        zh:
-          name: 简体中文
+        - name: English
+          build: true
+          default: true
+          locale: en
+        - name: 简体中文
+          build: true
+          locale: zh
       material_alternate: true
       nav_translations:
         zh:
diff --git a/requirements.txt b/requirements.txt
index b9c71ff4..6d9009d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +1,11 @@
-mkdocs-material==9.1.0
-mkdocs==1.4.2
+mkdocs-material==9.5.19
+mkdocs==1.6.0
 
 # Python Markdown Extensions
-pygments==2.14
-pymdown-extensions==9.10
+pygments==2.17.2
+pymdown-extensions==10.8.1
 
 # MkDocs Plugins
-mkdocs-exclude-search==0.6.5
-mkdocs-git-revision-date-localized-plugin==1.2.0
-mkdocs-static-i18n==0.56
+mkdocs-exclude-search==0.6.6
+mkdocs-git-revision-date-localized-plugin==1.2.4
+mkdocs-static-i18n==1.2.2