diff --git a/package.json b/package.json
index 7f89557..ff2a126 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   "devDependencies": {
     "coveralls": "3.0.3",
     "standard": "12.0.1",
-    "tap": "12.5.3"
+    "tap": "12.6.0"
   },
   "dependencies": {
     "checkdigit": "1.1.1"