diff --git a/.gitignore b/.gitignore
index caddd9f..bd8d34e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /syncd/
 *.log
 /temp/
+*.lock
diff --git a/examples/server.mjs b/examples/server.js
similarity index 100%
rename from examples/server.mjs
rename to examples/server.js
diff --git a/package.json b/package.json
index 4f446c7..9ede516 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "@uci/websocket",
-  "version": "0.1.5",
+  "version": "0.1.6",
   "description": "JSON packet host websocket server",
   "main": "src",
   "scripts": {
-    "testw": "mocha -r @std/esm test/*.test.mjs --watch --recurse --watch-extensions mjs",
-    "test": "mocha -r @std/esm --timeout 10000 test/*.test.mjs",
-    "testlog": "DEBUG=true mocha -r @std/esm --timeout 10000 test/*.test.mjs",
+    "testw": "mocha -r esm test/*.test.mjs --watch --recurse",
+    "test": "mocha -r esm --timeout 10000 test/*.test.mjs",
+    "testlog": "DEBUG=true mocha -r esm --timeout 10000 test/*.test.mjs",
     "testci": "istanbul cover ./node_modules/.bin/_mocha  --report lcovonly -- -R spec --recursive && codecov || true",
-    "s": "DEBUG=true node -r @std/esm  examples/server"
+    "s": "DEBUG=true node -r esm examples/server"
   },
   "author": "David Kebler",
   "license": "MIT",
@@ -31,12 +31,11 @@
     "url": "https://github.com/uCOMmandIt/websocket/issues"
   },
   "homepage": "https://github.com/uCOMmandIt/websocket#readme",
-  "@std/esm": "cjs",
   "devDependencies": {
-    "@std/esm": "^0.22.0",
     "chai": "^4.1.2",
     "chai-as-promised": "^7.1.1",
     "codecov": "^3.0.0",
+    "esm": "^3.0.21",
     "istanbul": "^0.4.5",
     "mocha": "^5.0.1",
     "nodemon": "^1.15.1"
diff --git a/src/index.mjs b/src/index.js
similarity index 100%
rename from src/index.mjs
rename to src/index.js
diff --git a/src/socket.mjs b/src/socket.js
similarity index 93%
rename from src/socket.mjs
rename to src/socket.js
index f2e3b17..04f955d 100644
--- a/src/socket.mjs
+++ b/src/socket.js
@@ -17,15 +17,7 @@ export default class Socket extends WebSocket.Server {
     //self bindings
     this._listen = this._listen.bind(this)
     this.create = this.create.bind(this)
-    log = logger.child(
-      {
-        repo:'uci-websocket',
-        npm:'@uci/websocket',
-        file:'src/socket.mjs',
-        class:'Socket',
-        id:this.id,
-        instance_created:new Date().getTime()
-      })
+    log = logger({file:'src/socket.js',class:'Socket',name:'websocket',id:this.id})
 
   } // end constructor
 
diff --git a/test/sockets/tcp-process.mjs b/test/sockets/tcp-process.js
similarity index 100%
rename from test/sockets/tcp-process.mjs
rename to test/sockets/tcp-process.js
diff --git a/test/sockets/tcpsocket-9080.mjs b/test/sockets/tcpsocket-9080.js
similarity index 100%
rename from test/sockets/tcpsocket-9080.mjs
rename to test/sockets/tcpsocket-9080.js
diff --git a/test/sockets/tcpsocket-default.mjs b/test/sockets/tcpsocket-default.js
similarity index 100%
rename from test/sockets/tcpsocket-default.mjs
rename to test/sockets/tcpsocket-default.js
diff --git a/test/sockets/usocket-default.mjs b/test/sockets/usocket-default.js
similarity index 100%
rename from test/sockets/usocket-default.mjs
rename to test/sockets/usocket-default.js
diff --git a/test/sockets/usocket.mjs b/test/sockets/usocket.js
similarity index 100%
rename from test/sockets/usocket.mjs
rename to test/sockets/usocket.js
diff --git a/test/tcp.test.mjs b/test/tcp.test.js
similarity index 100%
rename from test/tcp.test.mjs
rename to test/tcp.test.js
diff --git a/test/usocket-default.test.mjs b/test/usocket-default.test.js
similarity index 100%
rename from test/usocket-default.test.mjs
rename to test/usocket-default.test.js
diff --git a/test/usocket.test.mjs b/test/usocket.test.js
similarity index 100%
rename from test/usocket.test.mjs
rename to test/usocket.test.js