diff --git a/workspaces/arborist/test/fixtures/tap-with-yarn-lock/node_modules/mkdirp/package.json b/workspaces/arborist/test/fixtures/tap-with-yarn-lock/node_modules/mkdirp/package.json
index 863e860d4c262..bc6fed9070ec6 100644
--- a/workspaces/arborist/test/fixtures/tap-with-yarn-lock/node_modules/mkdirp/package.json
+++ b/workspaces/arborist/test/fixtures/tap-with-yarn-lock/node_modules/mkdirp/package.json
@@ -19,7 +19,7 @@
     "minimist": "0.0.8"
   },
   "devDependencies": {
-    "tap": "1",
+    "tap": "18.0.0",
     "mock-fs": "2 >=2.7.0"
   },
   "bin": "bin/cmd.js",