diff --git a/packages/core/src/Extension.ts b/packages/core/src/Extension.ts
index 19cc3eaa..18aa4b3b 100644
--- a/packages/core/src/Extension.ts
+++ b/packages/core/src/Extension.ts
@@ -236,7 +236,6 @@ export class Extension<Options = any> {
 
   config: ExtensionConfig = {
     name: this.name,
-    priority: 100,
     defaultOptions: {},
   }
 
diff --git a/packages/core/src/Mark.ts b/packages/core/src/Mark.ts
index ecea2fb2..1136dfdf 100644
--- a/packages/core/src/Mark.ts
+++ b/packages/core/src/Mark.ts
@@ -333,7 +333,6 @@ export class Mark<Options = any> {
 
   config: MarkConfig = {
     name: this.name,
-    priority: 100,
     defaultOptions: {},
   }
 
diff --git a/packages/core/src/Node.ts b/packages/core/src/Node.ts
index b089930e..6f4b76cc 100644
--- a/packages/core/src/Node.ts
+++ b/packages/core/src/Node.ts
@@ -414,7 +414,6 @@ export class Node<Options = any> {
 
   config: NodeConfig = {
     name: this.name,
-    priority: 100,
     defaultOptions: {},
   }