diff --git a/.gitmodules b/.gitmodules
index 380c6e9..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "themes/ocean"]
-	path = themes/ocean
-	url = https://github.com/zhwangart/hexo-theme-ocean
diff --git a/_config.yml b/_config.yml
index f2d2256..9c4d2f8 100644
--- a/_config.yml
+++ b/_config.yml
@@ -97,7 +97,7 @@ ignore:
 # Extensions
 ## Plugins: https://hexo.io/plugins/
 ## Themes: https://hexo.io/themes/
-theme: ocean
+theme: next
 
 # Deployment
 ## Docs: https://hexo.io/docs/one-command-deployment
diff --git a/package-lock.json b/package-lock.json
index 97236e2..b65502e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,8 @@
         "hexo-renderer-kramed": "^0.1.4",
         "hexo-renderer-stylus": "^3.0.1",
         "hexo-server": "^3.0.0",
-        "hexo-theme-landscape": "^1.0.0"
+        "hexo-theme-landscape": "^1.0.0",
+        "hexo-theme-next": "^8.20.0"
       }
     },
     "node_modules/@adobe/css-tools": {
@@ -1139,6 +1140,12 @@
       "integrity": "sha512-bWQJWMqQI78wWiJPQZq5pJBH20TM442ShCaHGRetuEgMraxH0OKxB3NTupJzNEkzEk8DV2yrdizkXdKN6i501A==",
       "license": "MIT"
     },
+    "node_modules/hexo-theme-next": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/hexo-theme-next/-/hexo-theme-next-8.20.0.tgz",
+      "integrity": "sha512-cLKE32mP6B2E84+4XUXOgZhaI+srndHAviVpDaz8S7fj4OTnRchWg1anbhpZTFAgMO0NSRs4A0kT61eXY3l/Gg==",
+      "license": "AGPL-3.0-only"
+    },
     "node_modules/hexo-util": {
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/hexo-util/-/hexo-util-3.3.0.tgz",
diff --git a/package.json b/package.json
index 133d55c..556853d 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
     "hexo-renderer-kramed": "^0.1.4",
     "hexo-renderer-stylus": "^3.0.1",
     "hexo-server": "^3.0.0",
-    "hexo-theme-landscape": "^1.0.0"
+    "hexo-theme-landscape": "^1.0.0",
+    "hexo-theme-next": "^8.20.0"
   }
-}
\ No newline at end of file
+}
diff --git a/themes/ocean b/themes/ocean
deleted file mode 160000
index 97c7bff..0000000
--- a/themes/ocean
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 97c7bffed84a699fb633dff22485bfc013e2f361
diff --git a/yarn.lock b/yarn.lock
index cb6db77..1a6d0e2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -606,6 +606,11 @@ hexo-theme-landscape@^1.0.0:
   resolved "https://registry.npmjs.org/hexo-theme-landscape/-/hexo-theme-landscape-1.0.0.tgz"
   integrity sha512-bWQJWMqQI78wWiJPQZq5pJBH20TM442ShCaHGRetuEgMraxH0OKxB3NTupJzNEkzEk8DV2yrdizkXdKN6i501A==
 
+hexo-theme-next@^8.20.0:
+  version "8.20.0"
+  resolved "https://registry.npmjs.org/hexo-theme-next/-/hexo-theme-next-8.20.0.tgz"
+  integrity sha512-cLKE32mP6B2E84+4XUXOgZhaI+srndHAviVpDaz8S7fj4OTnRchWg1anbhpZTFAgMO0NSRs4A0kT61eXY3l/Gg==
+
 hexo-util@^0.6.0:
   version "0.6.3"
   resolved "https://registry.npmjs.org/hexo-util/-/hexo-util-0.6.3.tgz"