diff --git a/packages/core/src/compiler/Compiler.spec.ts b/packages/core/src/compiler/Compiler.spec.ts
index e59023f5..5c80f59a 100644
--- a/packages/core/src/compiler/Compiler.spec.ts
+++ b/packages/core/src/compiler/Compiler.spec.ts
@@ -7,7 +7,7 @@
  */
 import { basename } from "path";
 import type { LanguageService, Program } from "typescript";
-import * as ts from "typescript";
+import ts from "typescript";
 import { ReporterMock, compileOptions, compileSystem } from "../../test";
 import { CompileFragment, Compiler } from "./Compiler";
 import { CompilerOptions } from "./CompilerOptions";
diff --git a/packages/core/src/environment/compile-service.ts b/packages/core/src/environment/compile-service.ts
index 3b54b4c8..e40bb7de 100644
--- a/packages/core/src/environment/compile-service.ts
+++ b/packages/core/src/environment/compile-service.ts
@@ -6,7 +6,7 @@
  */
 import { Reporter } from "@quatico/websmith-api";
 import merge from "lodash/merge";
-import * as ts from "typescript";
+import ts from "typescript";
 import { DefaultReporter } from "../compiler";
 
 /**
diff --git a/packages/core/test/compile-options.ts b/packages/core/test/compile-options.ts
index ae7af2e4..21058492 100644
--- a/packages/core/test/compile-options.ts
+++ b/packages/core/test/compile-options.ts
@@ -4,7 +4,7 @@
  *   Licensed under the MIT License. See LICENSE in the project root for license information.
  * ---------------------------------------------------------------------------------------------
  */
-import * as ts from "typescript";
+import ts from "typescript";
 import { AddonRegistry, type CompilerOptions } from "../src/compiler";
 import { ReporterMock } from "./ReporterMock";
 
diff --git a/packages/testing/src/compile-options.ts b/packages/testing/src/compile-options.ts
index c5f22286..491fa038 100644
--- a/packages/testing/src/compile-options.ts
+++ b/packages/testing/src/compile-options.ts
@@ -5,12 +5,12 @@
  * ---------------------------------------------------------------------------------------------
  */
 import { AddonRegistry, type CompilerOptions } from "@quatico/websmith-core";
-import * as ts from "typescript";
+import ts from "typescript";
 import { ReporterMock } from "./ReporterMock";
 
 export const compileOptions = (
     system: ts.System,
-    overrides?: Partial<CompilerOptions> | { tsconfig?: Partial<ts.ParsedCommandLine>; project?: Partial<ts.CompilerOptions>; targets?: string[] }
+    overrides?: Partial<CompilerOptions> & { tsconfig?: Partial<ts.ParsedCommandLine>; project?: Partial<ts.CompilerOptions>; targets?: string[] }
 ): CompilerOptions => {
     const reporter = new ReporterMock(system);
     return {