diff --git a/packages/benchsdk-runner/package.json b/packages/benchsdk-runner/package.json
index 686ba7af..e9a4170b 100644
--- a/packages/benchsdk-runner/package.json
+++ b/packages/benchsdk-runner/package.json
@@ -17,7 +17,7 @@
     }
   },
   "bin": {
-    "bench": "./dist/bin.cjs"
+    "bench": "./dist/bin.js"
   },
   "files": [
     "dist",
@@ -52,7 +52,8 @@
     "node": ">=18.0.0"
   },
   "dependencies": {
-    "@benchsdk/client": "workspace:*"
+    "@benchsdk/client": "workspace:*",
+    "tsx": "^4.23.12"
   },
   "devDependencies": {
     "@types/node": "^20.0.0",
diff --git a/packages/benchsdk-runner/src/bin.ts b/packages/benchsdk-runner/src/bin.ts
index 0fbb6035..0f52f948 100644
--- a/packages/benchsdk-runner/src/bin.ts
+++ b/packages/benchsdk-runner/src/bin.ts
@@ -3,6 +3,8 @@
 // benchmark module it loads share a single `@benchsdk/runner` instance — this
 // keeps `instanceof` checks (TaskError / NoAvailableParticipantsError) valid
 // across the bin and the dynamically imported `*.bench.ts`.
+import { register } from 'tsx/esm/api';
 import { run } from '@benchsdk/runner';
 
+register();
 run(process.argv.slice(2));
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 1cf85910..c062f845 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -258,6 +258,9 @@ importers:
       '@benchsdk/client':
         specifier: workspace:*
         version: link:../benchsdk
+      tsx:
+        specifier: ^4.23.12
+        version: 4.23.12
     devDependencies:
       '@types/node':
         specifier: ^20.0.0