diff --git a/.changeset/tiny-donuts-smell.md b/.changeset/tiny-donuts-smell.md
new file mode 100644
index 0000000..0c99c5f
--- /dev/null
+++ b/.changeset/tiny-donuts-smell.md
@@ -0,0 +1,5 @@
+---
+'@mheob/eslint-config': patch
+---
+
+Ensure all needed packages are installed at using Astro.
diff --git a/packages/eslint-config/src/configs/astro.ts b/packages/eslint-config/src/configs/astro.ts
index bc896bd..b348315 100644
--- a/packages/eslint-config/src/configs/astro.ts
+++ b/packages/eslint-config/src/configs/astro.ts
@@ -1,12 +1,14 @@
 import { GLOB_ASTRO } from '../globs';
 import type { OptionsFiles, OptionsOverrides, TypedFlatConfigItem } from '../types';
-import { interopDefault } from '../utils';
+import { ensurePackages, interopDefault } from '../utils';
 
 export async function astro(
 	options: OptionsFiles & OptionsOverrides = {},
 ): Promise<TypedFlatConfigItem[]> {
 	const { files = [GLOB_ASTRO], overrides = {} } = options;
 
+	await ensurePackages(['eslint-plugin-astro', 'astro-eslint-parser', '@typescript-eslint/parser']);
+
 	const [pluginAstro, parserAstro, parserTs] = await Promise.all([
 		interopDefault(import('eslint-plugin-astro')),
 		interopDefault(import('astro-eslint-parser')),