diff --git a/benchmarks/datetime.js b/benchmarks/datetime.js
index 0362f8ee9..39d6bf07c 100644
--- a/benchmarks/datetime.js
+++ b/benchmarks/datetime.js
@@ -1,6 +1,6 @@
 import Benchmark from "benchmark";
-import DateTime from "../src/datetime";
-import Settings from "../src/settings";
+import DateTime from "../src/datetime.js";
+import Settings from "../src/settings.js";
 
 function runDateTimeSuite() {
   return new Promise((resolve, reject) => {
diff --git a/benchmarks/index.js b/benchmarks/index.js
index db58cb32c..a2d3daf47 100644
--- a/benchmarks/index.js
+++ b/benchmarks/index.js
@@ -1,5 +1,5 @@
-import dateTimeSuites from "./datetime";
-import infoSuites from "./info";
+import dateTimeSuites from "./datetime.js";
+import infoSuites from "./info.js";
 
 const allSuites = [...dateTimeSuites, ...infoSuites];
 
diff --git a/benchmarks/info.js b/benchmarks/info.js
index 7efa9b3e7..f358f66a9 100644
--- a/benchmarks/info.js
+++ b/benchmarks/info.js
@@ -1,5 +1,5 @@
 import Benchmark from "benchmark";
-import Info from "../src/info";
+import Info from "../src/info.js";
 import Locale from "../src/impl/locale.js";
 
 function runWeekdaysSuite() {
diff --git a/benchmarks/package.json b/benchmarks/package.json
new file mode 100644
index 000000000..3dbc1ca59
--- /dev/null
+++ b/benchmarks/package.json
@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}
diff --git a/package.json b/package.json
index aa3f831fb..7f97f3dd5 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "site": "npm run api-docs && npm run copy-site",
     "format": "prettier --write 'src/**/*.js' 'test/**/*.js' 'benchmarks/*.js'",
     "format-check": "prettier --check 'src/**/*.js' 'test/**/*.js' 'benchmarks/*.js'",
-    "benchmark": "babel-node benchmarks/index.js",
+    "benchmark": "node benchmarks/index.js",
     "codecov": "codecov",
     "prepack": "babel-node tasks/buildAll.js",
     "prepare": "husky install",