diff --git a/packages/extension-ordered-list/index.ts b/packages/extension-ordered-list/index.ts
index b4c58b27..492dc546 100644
--- a/packages/extension-ordered-list/index.ts
+++ b/packages/extension-ordered-list/index.ts
@@ -23,7 +23,7 @@ export default new Node()
       tag: 'ol',
       getAttrs: node => ({
         order: (node as HTMLElement).hasAttribute('start')
-          ? +(node as HTMLElement).getAttribute('start')
+          ? parseInt((node as HTMLElement).getAttribute('start') || '')
           : 1,
       }),
     }],
diff --git a/packages/starter-kit/index.ts b/packages/starter-kit/index.ts
index dce2e9b9..d16ab0dd 100644
--- a/packages/starter-kit/index.ts
+++ b/packages/starter-kit/index.ts
@@ -13,6 +13,7 @@ import Underline from '@tiptap/extension-underline'
 import Blockquote from '@tiptap/extension-blockquote'
 import HorizontalRule from '@tiptap/extension-horizontal-rule'
 import BulletList from '@tiptap/extension-bullet-list'
+import OrderedList from '@tiptap/extension-ordered-list'
 import ListItem from '@tiptap/extension-list-item'
 
 export default function defaultExtensions() {
@@ -32,6 +33,7 @@ export default function defaultExtensions() {
     Blockquote(),
     HorizontalRule(),
     BulletList(),
+    OrderedList(),
     ListItem(),
   ]
 }
\ No newline at end of file
diff --git a/packages/starter-kit/package.json b/packages/starter-kit/package.json
index db6457be..8e2e0d4d 100644
--- a/packages/starter-kit/package.json
+++ b/packages/starter-kit/package.json
@@ -27,6 +27,7 @@
     "@tiptap/extension-blockquote": "1.x",
     "@tiptap/extension-horizontal-rule": "1.x",
     "@tiptap/extension-bullet-list": "1.x",
+    "@tiptap/extension-ordered-list": "1.x",
     "@tiptap/extension-list-item": "1.x"
   }
 }
diff --git a/packages/vue-starter-kit/index.ts b/packages/vue-starter-kit/index.ts
index 0701952d..4d603f36 100644
--- a/packages/vue-starter-kit/index.ts
+++ b/packages/vue-starter-kit/index.ts
@@ -15,6 +15,7 @@ import Underline from '@tiptap/extension-underline'
 import Blockquote from '@tiptap/extension-blockquote'
 import HorizontalRule from '@tiptap/extension-horizontal-rule'
 import BulletList from '@tiptap/extension-bullet-list'
+import OrderedList from '@tiptap/extension-ordered-list'
 import ListItem from '@tiptap/extension-list-item'
 
 export function defaultExtensions() {
@@ -34,6 +35,7 @@ export function defaultExtensions() {
     Blockquote(),
     HorizontalRule(),
     BulletList(),
+    OrderedList(),
     ListItem(),
   ]
 }
\ No newline at end of file
diff --git a/packages/vue-starter-kit/package.json b/packages/vue-starter-kit/package.json
index 0cfb1835..f34d39f3 100644
--- a/packages/vue-starter-kit/package.json
+++ b/packages/vue-starter-kit/package.json
@@ -28,6 +28,7 @@
     "@tiptap/extension-blockquote": "1.x",
     "@tiptap/extension-horizontal-rule": "1.x",
     "@tiptap/extension-bullet-list": "1.x",
+    "@tiptap/extension-ordered-list": "1.x",
     "@tiptap/extension-list-item": "1.x"
   }
 }