diff --git a/.changeset/fluffy-panthers-yell.md b/.changeset/fluffy-panthers-yell.md
new file mode 100644
index 0000000000..1e763dfc9e
--- /dev/null
+++ b/.changeset/fluffy-panthers-yell.md
@@ -0,0 +1,5 @@
+---
+"@tiptap/core": patch
+---
+
+Update TypeScript types to allow options to be optional
diff --git a/packages/core/src/Extension.ts b/packages/core/src/Extension.ts
index fa649aa34c..ae58708372 100644
--- a/packages/core/src/Extension.ts
+++ b/packages/core/src/Extension.ts
@@ -474,9 +474,9 @@ export class Extension<Options = any, Storage = any> {
   }
 
   extend<ExtendedOptions = Options, ExtendedStorage = Storage>(
-    extendedConfig: Partial<ExtensionConfig<ExtendedOptions, ExtendedStorage>> = {},
+    extendedConfig: Partial<ExtensionConfig<Partial<ExtendedOptions>, Partial<ExtendedStorage>>> = {},
   ) {
-    const extension = new Extension<ExtendedOptions, ExtendedStorage>({ ...this.config, ...extendedConfig })
+    const extension = new Extension<ExtendedOptions, ExtendedStorage>({ ...this.config, ...extendedConfig } as ExtensionConfig)
 
     extension.parent = this
 
diff --git a/packages/core/src/Mark.ts b/packages/core/src/Mark.ts
index ea57edd7f3..3200f705fa 100644
--- a/packages/core/src/Mark.ts
+++ b/packages/core/src/Mark.ts
@@ -606,9 +606,9 @@ export class Mark<Options = any, Storage = any> {
   }
 
   extend<ExtendedOptions = Options, ExtendedStorage = Storage>(
-    extendedConfig: Partial<MarkConfig<ExtendedOptions, ExtendedStorage>> = {},
+    extendedConfig: Partial<MarkConfig<Partial<ExtendedOptions>, Partial<ExtendedStorage>>> = {},
   ) {
-    const extension = new Mark<ExtendedOptions, ExtendedStorage>(extendedConfig)
+    const extension = new Mark<ExtendedOptions, ExtendedStorage>(extendedConfig as MarkConfig)
 
     extension.parent = this
 
diff --git a/packages/core/src/Node.ts b/packages/core/src/Node.ts
index 567e0eef7d..05ef81539a 100644
--- a/packages/core/src/Node.ts
+++ b/packages/core/src/Node.ts
@@ -816,9 +816,9 @@ export class Node<Options = any, Storage = any> {
   }
 
   extend<ExtendedOptions = Options, ExtendedStorage = Storage>(
-    extendedConfig: Partial<NodeConfig<ExtendedOptions, ExtendedStorage>> = {},
+    extendedConfig: Partial<NodeConfig<Partial<ExtendedOptions>, Partial<ExtendedStorage>>> = {},
   ) {
-    const extension = new Node<ExtendedOptions, ExtendedStorage>(extendedConfig)
+    const extension = new Node<ExtendedOptions, ExtendedStorage>(extendedConfig as NodeConfig)
 
     extension.parent = this