diff --git a/packages/nextjs/src/config/webpack.ts b/packages/nextjs/src/config/webpack.ts
index 94db1cca621d..30532b354360 100644
--- a/packages/nextjs/src/config/webpack.ts
+++ b/packages/nextjs/src/config/webpack.ts
@@ -433,7 +433,7 @@ export function constructWebpackConfigFunction({
 
     // Orchestrion code-transform loader — Node server runtime only, never the edge compilation
     if (runtime === 'server' && userSentryOptions._experimental?.useDiagnosticsChannelInjection) {
-      newConfig.plugins.push(sentryOrchestrionWebpackPlugin() as WebpackPluginInstance);
+      newConfig.plugins.push(sentryOrchestrionWebpackPlugin() as unknown as WebpackPluginInstance);
     }
 
     return newConfig;
diff --git a/packages/server-utils/package.json b/packages/server-utils/package.json
index 749dd600cb80..cd0ba30a9c90 100644
--- a/packages/server-utils/package.json
+++ b/packages/server-utils/package.json
@@ -39,12 +39,11 @@
     },
     "./orchestrion/vite": {
       "types": "./build/types/orchestrion/bundler/vite.d.ts",
-      "import": "./build/esm/orchestrion/bundler/vite.js"
+      "default": "./build/esm/orchestrion/bundler/vite.js"
     },
     "./orchestrion/webpack": {
       "types": "./build/types/orchestrion/bundler/webpack.d.ts",
-      "import": "./build/esm/orchestrion/bundler/webpack.js",
-      "require": "./build/cjs/orchestrion/bundler/webpack.js"
+      "default": "./build/esm/orchestrion/bundler/webpack.js"
     },
     "./orchestrion/import-hook": {
       "import": "./build/orchestrion/import-hook.mjs"
diff --git a/packages/server-utils/src/orchestrion/bundler/webpack.ts b/packages/server-utils/src/orchestrion/bundler/webpack.ts
index 04eb56a2c6b9..860a1cc046bc 100644
--- a/packages/server-utils/src/orchestrion/bundler/webpack.ts
+++ b/packages/server-utils/src/orchestrion/bundler/webpack.ts
@@ -5,6 +5,7 @@ import { createRequire } from 'node:module';
 import { dirname } from 'node:path';
 import type { InstrumentationConfig } from '@apm-js-collab/code-transformer';
 import { SENTRY_INSTRUMENTATIONS } from '../config';
+import codeTransformer from '@apm-js-collab/code-transformer-bundler-plugins/webpack';
 
 // Both branches use `createRequire` (never alias the CJS `require`) so bundlers consuming this
 // module don't emit a "Critical dependency" warning.
@@ -46,10 +47,6 @@ export function getSentryInstrumentations(): InstrumentationConfig[] {
  * does NOT inject the `__SENTRY_ORCHESTRION__.bundler` marker — that would disable the runtime
  * module hook, which externalized packages still need (hybrid setup).
  */
-export function sentryOrchestrionWebpackPlugin(): unknown {
-  const mod = getOrchestrionRequire()('@apm-js-collab/code-transformer-bundler-plugins/webpack') as {
-    default?: (options: { instrumentations: InstrumentationConfig[] }) => unknown;
-  };
-  const codeTransformerWebpack = mod.default ?? (mod as unknown as NonNullable<typeof mod.default>);
-  return codeTransformerWebpack({ instrumentations: SENTRY_INSTRUMENTATIONS });
+export function sentryOrchestrionWebpackPlugin(): ReturnType<typeof codeTransformer> {
+  return codeTransformer({ instrumentations: SENTRY_INSTRUMENTATIONS });
 }
diff --git a/packages/server-utils/src/orchestrion/runtime/register.ts b/packages/server-utils/src/orchestrion/runtime/register.ts
index 157672c8c3cd..4850915aaee6 100644
--- a/packages/server-utils/src/orchestrion/runtime/register.ts
+++ b/packages/server-utils/src/orchestrion/runtime/register.ts
@@ -84,9 +84,6 @@ export function registerDiagnosticsChannelInjection(options?: RegisterDiagnostic
   nodeRequire = createRequire(import.meta.url);
   /*! rollup-include-esm-only-end */
 
-  const tracingHooksDir = options?.tracingHooksDir;
-  const requireFromHooksDir = tracingHooksDir ? createRequire(thisModuleUrl) : undefined;
-
   // `Module.registerHooks` / `Module.register` are newer than the @types/node
   // we build against, hence the cast.
   const mod = Module as unknown as {
@@ -105,11 +102,7 @@ export function registerDiagnosticsChannelInjection(options?: RegisterDiagnostic
       // We require() the module here so that we can synchronously load it,
       // including from a CommonJS Sentry build, without bundlers pulling in.
       // All versions in stableSyncHooks support this.
-      const { initialize, resolve, load } = (
-        requireFromHooksDir
-          ? requireFromHooksDir(`${tracingHooksDir}/hook-sync.mjs`)
-          : nodeRequire('@apm-js-collab/tracing-hooks/hook-sync.mjs')
-      ) as {
+      const { initialize, resolve, load } = nodeRequire('@apm-js-collab/tracing-hooks/hook-sync.mjs') as {
         initialize: (opts: { instrumentations: unknown }) => void;
         resolve: unknown;
         load: unknown;
@@ -124,10 +117,7 @@ export function registerDiagnosticsChannelInjection(options?: RegisterDiagnostic
       // `Module.register` resolves ESM-style: a bare package specifier is resolved against
       // `parentURL`, but a filesystem path (the `tracingHooksDir` override) is not a valid ESM
       // specifier and must be passed as a file:// URL.
-      const hookSpecifier = tracingHooksDir
-        ? pathToFileURL(`${tracingHooksDir}/hook.mjs`).href
-        : '@apm-js-collab/tracing-hooks/hook.mjs';
-      mod.register(hookSpecifier, {
+      mod.register('@apm-js-collab/tracing-hooks/hook.mjs', {
         parentURL: thisModuleUrl,
         data: { instrumentations: SENTRY_INSTRUMENTATIONS },
       });