diff --git a/.mocharc.json b/.mocharc.json
new file mode 100644
index 00000000..670c5e2c
--- /dev/null
+++ b/.mocharc.json
@@ -0,0 +1,5 @@
+{
+  "enable-source-maps": true,
+  "throw-deprecation": true,
+  "timeout": 10000
+}
diff --git a/package.json b/package.json
index 34688d1b..525cc263 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,6 @@
     "null-loader": "^3.0.0",
     "puppeteer": "^2.0.0",
     "sinon": "^8.0.0",
-    "source-map-support": "^0.5.10",
     "tmp": "0.1.0",
     "ts-loader": "^6.0.0",
     "typescript": "3.6.4",
diff --git a/synth.metadata b/synth.metadata
index 6f2fcb10..7005dbbc 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1,5 +1,5 @@
 {
-  "updateTime": "2020-04-01T11:17:49.507528Z",
+  "updateTime": "2020-04-01T11:17:48.410680Z",
   "sources": [
     {
       "git": {
diff --git a/test/mocha.opts b/test/mocha.opts
deleted file mode 100644
index 247d923a..00000000
--- a/test/mocha.opts
+++ /dev/null
@@ -1,3 +0,0 @@
---require source-map-support/register
---throw-deprecation
---timeout 10000