diff --git a/package.json b/package.json
index adfb845f..47b9a2b6 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "lint": "wsrun -p $(yarn --silent run pkgparse) --fast-exit --parallel --exclude-missing lint",
     "fix": "wsrun -p $(yarn --silent run pkgparse) --fast-exit --parallel --exclude-missing fix",
     "clean": "wsrun -p $(yarn --silent run pkgparse) -r --fast-exit --parallel --exclude-missing clean",
-    "test": "wsrun -p $(yarn --silent run pkgparse) -r --fast-exit --parallel --exclude-missing test",
+    "test": "wsrun -p $(yarn --silent run pkgparse) --fast-exit --parallel --exclude-missing test",
     "build": "lerna link && wsrun -p $(yarn --silent run pkgparse) -r --fast-exit --stages --exclude-missing build",
     "release": "yarn run build && lerna publish --force-publish --exact -m \"chore(@plasma-group) publish %s release\"",
     "release:rc": "yarn run build && lerna publish --npm-tag=rc -m \"chore(@plasma-group) publish %s release\"",
diff --git a/packages/contracts/package.json b/packages/contracts/package.json
index e2549d16..cd26e27d 100644
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -7,7 +7,7 @@
     "build/**/.js"
   ],
   "scripts": {
-    "test": "mocha --require ts-node/register 'test/**/*.ts'",
+    "test": "mocha --require ts-node/register 'test/**/*.spec.ts'",
     "lint": "tslint --format stylish --project .",
     "fix": "prettier --config ./.prettierrc.js --write 'index.ts' '{src,test}/**/*.ts'",
     "build": "yarn tsc -p ."
diff --git a/packages/operator/package.json b/packages/operator/package.json
index b6758bf5..fd70efa9 100644
--- a/packages/operator/package.json
+++ b/packages/operator/package.json
@@ -7,7 +7,6 @@
     "build/**/.js"
   ],
   "scripts": {
-    "test": "mocha --require ts-node/register 'test/**/*.spec.ts'",
     "lint": "tslint --format stylish --project .",
     "fix": "prettier --config ./.prettierrc.js --write 'index.ts' '{src,test}/**/*.ts'",
     "build": "yarn tsc -p ."
diff --git a/packages/plasma-js/package.json b/packages/plasma-js/package.json
index d4118541..a72d7573 100644
--- a/packages/plasma-js/package.json
+++ b/packages/plasma-js/package.json
@@ -7,7 +7,6 @@
     "build/**/.js"
   ],
   "scripts": {
-    "test": "mocha --require ts-node/register 'test/**/*.ts'",
     "lint": "tslint --format stylish --project .",
     "fix": "prettier --config ./.prettierrc.js --write 'index.ts' '{src,test}/**/*.ts'",
     "build": "yarn tsc -p ."
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 5f6eeff0..a13e1df4 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -7,7 +7,7 @@
     "build/**/.js"
   ],
   "scripts": {
-    "test": "mocha --require ts-node/register 'test/**/*.ts'",
+    "test": "mocha --require ts-node/register 'test/**/*.spec.ts'",
     "lint": "tslint --format stylish --project .",
     "fix": "prettier --config ./.prettierrc.js --write 'index.ts' '{src,test}/**/*.ts'",
     "build": "yarn tsc -p ."
diff --git a/packages/utils/test/sum-tree.ts b/packages/utils/test/sum-tree.spec.ts
similarity index 100%
rename from packages/utils/test/sum-tree.ts
rename to packages/utils/test/sum-tree.spec.ts
diff --git a/packages/utils/test/utils/eth.ts b/packages/utils/test/utils/eth.spec.ts
similarity index 100%
rename from packages/utils/test/utils/eth.ts
rename to packages/utils/test/utils/eth.spec.ts
diff --git a/packages/utils/test/utils/misc.ts b/packages/utils/test/utils/misc.spec.ts
similarity index 100%
rename from packages/utils/test/utils/misc.ts
rename to packages/utils/test/utils/misc.spec.ts
diff --git a/packages/vyper-js/package.json b/packages/vyper-js/package.json
index d2ec2270..95a01bc7 100644
--- a/packages/vyper-js/package.json
+++ b/packages/vyper-js/package.json
@@ -7,7 +7,6 @@
     "build/**/.js"
   ],
   "scripts": {
-    "test": "mocha --require ts-node/register 'test/**/*.ts'",
     "lint": "tslint --format stylish --project .",
     "fix": "prettier --config ./.prettierrc.js --write 'index.ts' 'src/**/*.ts'",
     "build": "yarn tsc -p ."