diff --git a/packages/core/src/common/certificate-authorities/request-system-cas.injectable.win32.ts b/packages/core/src/common/certificate-authorities/request-system-cas.injectable.win32.ts
index 4940aa2a7b..b4bcb51733 100644
--- a/packages/core/src/common/certificate-authorities/request-system-cas.injectable.win32.ts
+++ b/packages/core/src/common/certificate-authorities/request-system-cas.injectable.win32.ts
@@ -3,6 +3,7 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import { getInjectable } from "@ogre-tools/injectable";
+import * as path from "path";
 import execFileInjectable from "../fs/exec-file.injectable";
 import loggerInjectable from "../logger.injectable";
 import { requestSystemCAsInjectionToken } from "./request-system-cas-token";
@@ -23,7 +24,7 @@ const pemEncoding = (hexEncodedCert: String) => {
 const requestSystemCAsInjectable = getInjectable({
   id: "request-system-cas",
   instantiate: (di) => {
-    const wincaRootsExePath: string = __non_webpack_require__.resolve("win-ca/lib/roots.exe");
+    const wincaRootsExePath: string = path.resolve(require.resolve("win-ca"), "..", "roots.exe");
     const execFile = di.inject(execFileInjectable);
     const logger = di.inject(loggerInjectable);
 
diff --git a/packages/core/webpack/library-bundle.ts b/packages/core/webpack/library-bundle.ts
index 9de09a2a9c..445e60705b 100644
--- a/packages/core/webpack/library-bundle.ts
+++ b/packages/core/webpack/library-bundle.ts
@@ -93,10 +93,12 @@ const config = [
     optimization: {
       minimize: false,
     },
-    externals: {
-      ...(rendererConfig.externals as any),
-      "monaco-editor": "commonjs monaco-editor",
-    },
+    externals: [
+      ...(rendererConfig.externals as any).filter(Boolean),
+      {
+        "monaco-editor": "commonjs monaco-editor",
+      },
+    ],
     plugins: [
       new DefinePlugin({
         CONTEXT_MATCHER_FOR_NON_FEATURES: `/\\.injectable(\\.${platform})?\\.tsx?$/`,
diff --git a/packages/core/webpack/renderer.ts b/packages/core/webpack/renderer.ts
index b39fbfa656..2a29acb1f1 100755
--- a/packages/core/webpack/renderer.ts
+++ b/packages/core/webpack/renderer.ts
@@ -66,6 +66,7 @@ export function webpackLensRenderer({ showVars = true } = {}): webpack.Configura
     externals: [
       {
         "node-fetch": "commonjs node-fetch",
+        "win-ca": "commonjs win-ca",
       },
       ...additionalExternals,
     ],