diff --git a/packages/types/tools/copy-ast-spec.ts b/packages/types/tools/copy-ast-spec.ts
index 0288453a3100..59bbf1e4b93f 100644
--- a/packages/types/tools/copy-ast-spec.ts
+++ b/packages/types/tools/copy-ast-spec.ts
@@ -56,4 +56,7 @@ async function main(): Promise<void> {
   ]);
 }
 
-void main();
+main().catch(error => {
+  console.error(error);
+  process.exitCode = 1;
+});
diff --git a/packages/typescript-estree/project.json b/packages/typescript-estree/project.json
index a3e44b64373d..fe32123b5505 100644
--- a/packages/typescript-estree/project.json
+++ b/packages/typescript-estree/project.json
@@ -1,5 +1,5 @@
 {
   "root": "packages/typescript-estree",
   "type": "library",
-  "implicitDependencies": []
+  "implicitDependencies": ["@typescript-eslint/types"]
 }