diff --git a/bin/run.js b/bin/run.js
index e83a6b591..48a305556 100755
--- a/bin/run.js
+++ b/bin/run.js
@@ -399,6 +399,7 @@ function respawnWithCoverage (options) {
   // Re-spawn with coverage
   var args = [nycBin].concat(
     '--silent',
+    '--cache=true',
     options.nycArgs,
     '--',
     process.execArgv,
diff --git a/package.json b/package.json
index 0a3724acb..397f862b6 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "glob": "^7.0.0",
     "isexe": "^1.0.0",
     "js-yaml": "^3.3.1",
-    "nyc": "^7.1.0",
+    "nyc": "^9.0.1",
     "only-shallow": "^1.0.2",
     "opener": "^1.4.1",
     "os-homedir": "1.0.1",