diff --git a/packages/stat-logger/package.json b/packages/stat-logger/package.json
index 06bc1dde7624..789d5a8a310f 100644
--- a/packages/stat-logger/package.json
+++ b/packages/stat-logger/package.json
@@ -2,9 +2,7 @@
   "name": "@agoric/stat-logger",
   "version": "0.4.17",
   "description": "Simple library for logging and graphing performance statistics",
-  "parsers": {
-    "js": "mjs"
-  },
+  "type": "module",
   "main": "src/index.js",
   "repository": "https://github.com/Agoric/agoric-sdk",
   "author": "Agoric",
@@ -23,8 +21,7 @@
     "vega-canvas": "^1.2.1"
   },
   "devDependencies": {
-    "ava": "^3.12.1",
-    "esm": "agoric-labs/esm#Agoric-built"
+    "ava": "^3.12.1"
   },
   "publishConfig": {
     "access": "public"
@@ -33,9 +30,6 @@
     "files": [
       "test/**/test-*.js"
     ],
-    "require": [
-      "esm"
-    ],
     "timeout": "2m"
   },
   "eslintConfig": {
diff --git a/packages/stat-logger/src/index.js b/packages/stat-logger/src/index.js
index 64d5477555b6..8a7b95cb49ea 100644
--- a/packages/stat-logger/src/index.js
+++ b/packages/stat-logger/src/index.js
@@ -3,5 +3,5 @@ export {
   addDataToGraphSpec,
   addGraphToGraphSpec,
   renderGraph,
-} from './statGraph';
-export { makeStatLogger } from './statLogger';
+} from './statGraph.js';
+export { makeStatLogger } from './statLogger.js';