diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60d19bad3..12f35132e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,6 +70,9 @@ jobs:
                   npm install
                   npm run build
 
+            - name: Run TypeScript Compiler
+              run: npx tsc
+
             - name: Test types (core)
               working-directory: packages/core
               run: |
diff --git a/package.json b/package.json
index f184df4c0..cd04b0b45 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "fmt": "prettier --write .",
     "fmt:check": "prettier --check .",
     "test:jsr": "npm run test:jsr --workspaces --if-present",
-    "test:types": "tsc"
+    "test:types": "tsc && npm run test:types --workspaces --if-present"
   },
   "workspaces": [
     "packages/*"
diff --git a/packages/migrate-config/src/migrate-config-cli.js b/packages/migrate-config/src/migrate-config-cli.js
index b2802ab91..c881de639 100755
--- a/packages/migrate-config/src/migrate-config-cli.js
+++ b/packages/migrate-config/src/migrate-config-cli.js
@@ -23,6 +23,7 @@
 import fsp from "node:fs/promises";
 import path from "node:path";
 import { migrateConfig, migrateJSConfig } from "./migrate-config.js";
+// @ts-ignore: No types available
 import { Legacy } from "@eslint/eslintrc";
 
 //-----------------------------------------------------------------------------
diff --git a/packages/migrate-config/src/migrate-config.js b/packages/migrate-config/src/migrate-config.js
index 901bdcf42..b1c33fd7b 100644
--- a/packages/migrate-config/src/migrate-config.js
+++ b/packages/migrate-config/src/migrate-config.js
@@ -8,6 +8,7 @@
 //-----------------------------------------------------------------------------
 
 import * as recast from "recast";
+// @ts-ignore: No types available
 import { Legacy } from "@eslint/eslintrc";
 import camelCase from "camelcase";
 import pluginsNeedingCompat from "./compat-plugins.js";