diff --git a/.changeset/witty-mangos-fetch.md b/.changeset/witty-mangos-fetch.md
new file mode 100644
index 0000000..c3be4f0
--- /dev/null
+++ b/.changeset/witty-mangos-fetch.md
@@ -0,0 +1,6 @@
+---
+"web-dev-server-plugin-lit-css": patch
+"rollup-plugin-lit-css": patch
+---
+
+Corrected types for include and exclude. No runtime changes
diff --git a/packages/rollup-plugin-lit-css/rollup-plugin-lit-css.ts b/packages/rollup-plugin-lit-css/rollup-plugin-lit-css.ts
index c410201..5d875b5 100644
--- a/packages/rollup-plugin-lit-css/rollup-plugin-lit-css.ts
+++ b/packages/rollup-plugin-lit-css/rollup-plugin-lit-css.ts
@@ -1,13 +1,13 @@
 import type { Plugin } from 'rollup';
 import type { Options } from '@pwrs/lit-css/lit-css';
 
-import { createFilter } from '@rollup/pluginutils';
+import { createFilter, type FilterPattern } from '@rollup/pluginutils';
 import { transform } from '@pwrs/lit-css';
 import { resolve } from 'node:path';
 
 export interface LitCSSOptions extends Omit<Options, 'css'> {
-  include?: RegExp | string[];
-  exclude?: RegExp | string[];
+  include?: FilterPattern;
+  exclude?: FilterPattern;
 }
 
 export function litCss(options?: LitCSSOptions): Plugin {
diff --git a/packages/web-dev-server-plugin-lit-css/web-dev-server-plugin-lit-css.ts b/packages/web-dev-server-plugin-lit-css/web-dev-server-plugin-lit-css.ts
index a9531aa..500f8e8 100644
--- a/packages/web-dev-server-plugin-lit-css/web-dev-server-plugin-lit-css.ts
+++ b/packages/web-dev-server-plugin-lit-css/web-dev-server-plugin-lit-css.ts
@@ -2,11 +2,11 @@ import type { Options } from '@pwrs/lit-css/lit-css';
 import type { Plugin } from '@web/dev-server-core';
 
 import { transform } from '@pwrs/lit-css';
-import { createFilter } from '@rollup/pluginutils';
+import { createFilter, type FilterPattern } from '@rollup/pluginutils';
 
 export interface LitCSSOptions extends Omit<Options, 'css'> {
-  include?: RegExp | string[];
-  exclude?: RegExp | string[];
+  include?: FilterPattern;
+  exclude?: FilterPattern;
 }
 
 export function litCss(options?: LitCSSOptions): Plugin {