diff --git a/.mocharc.json b/.mocharc.json
deleted file mode 100644
index c7504dbd..00000000
--- a/.mocharc.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "node-option": [
-      "experimental-specifier-resolution=node",
-      "loader=ts-node/esm"
-  ],
-  "url" : "https://stackoverflow.com/questions/64261239/mocha-tests-with-esm-support-for-native-es6-modules"
-}
diff --git a/README.md b/README.md
index 180b9229..affefe3b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Homiconic C
-version: 0.5.9
+version: 0.5.10
 
 [![Codeship Status for TheSwanFactory/hclang](https://app.codeship.com/projects/b1198f30-aee9-0137-5fdc-4a1003a17a1c/status?branch=master)](https://app.codeship.com/projects/362584)
 
diff --git a/doc/BitScheme.html b/doc/BitScheme.html
index 02956d5f..2630fd9c 100644
--- a/doc/BitScheme.html
+++ b/doc/BitScheme.html
@@ -1013,7 +1013,7 @@ <h2 id="_next_steps">Next Steps</h2>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2023-10-08 17:21:32 -0700
+Last updated 2023-10-08 21:46:40 -0700
 </div>
 </div>
 </body>
diff --git a/package-lock.json b/package-lock.json
index fcf0901e..130d58f8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "hclang",
-  "version": "0.5.9",
+  "version": "0.5.10",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "hclang",
-      "version": "0.5.9",
+      "version": "0.5.10",
       "license": "MIT",
       "dependencies": {
         "chalk": "^5.3.0",
diff --git a/package.json b/package.json
index 94857cfd..54081574 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hclang",
-  "version": "0.5.9",
+  "version": "0.5.10",
   "description": "Homoiconic C: Programming without a Language",
   "license": "MIT",
   "repository": {
@@ -30,8 +30,11 @@
   "bin": {
     "hc": "lib/src/cli/hc.js"
   },
-  "watch": {
-    "test": "{src,test}/*.js"
+  "mocha": {
+    "extension": "ts",
+    "loader": "ts-node/esm",
+    "recursive": true,
+    "trace-warnings": false
   },
   "scripts": {
     "bs:html": "tail +3 -q hc/BitScheme.hc hc/BitScheme-1.hc > doc/BitScheme.adoc && asciidoctor doc/BitScheme.adoc && open doc/BitScheme.html",
@@ -43,12 +46,12 @@
     "check": "grep -e 'only' -e 'skip' test/*/* || echo 'Ran all tests'",
     "clean": "rimraf lib dist && rm -f *.log.* src/*.js src/*/*.js test/*.js test/*/*.js",
     "clean-git": "git branch -D `git branch --merged | grep -v '\\*' | grep -v 'master'`",
-    "debug": "echo 'Use `debugger;`\n' && mocha --inspect-brk --require ts-node/register --recursive test/**/*-spec.ts",
+    "debug": "echo 'Use `debugger;`\n' && npm  --inspect-brk ",
     "done": "npm run clean && npm run bs:all && npm run check && npm run tag && npm install && git commit -am 'update version'",
     "lint": "eslint --fix \"{src,test}/**/*.ts\"",
     "hc": "node lib/src/cli/hc.js",
-    "test": "npm run build && mocha --require ts-node/register test/**/*.*ts",
-    "test-only": "mocha --require ts-node/register test/**/*.*ts",
+    "test": "npm run build && mocha",
+    "test-only": "mocha",
     "tag": "bump patch -ct package*.json README.md src/version.ts",
     "tag:minor": "bump minor -ct package*.json README.md src/version.ts",
     "ts": "npx tsc --pretty --inlineSourceMap && chmod a+x ./lib/src/cli/hc.js",
diff --git a/src/version.ts b/src/version.ts
index 0fa58d15..6862480c 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1,2 +1,2 @@
 // generated by genversion
-export const version = '0.5.9'
+export const version = '0.5.10'