diff --git a/workspaces/arborist/test/fixtures/dev-deps/node_modules/diff-frag/package.json b/workspaces/arborist/test/fixtures/dev-deps/node_modules/diff-frag/package.json
index 3bad362b4a122..39d9dcc3d4bd0 100644
--- a/workspaces/arborist/test/fixtures/dev-deps/node_modules/diff-frag/package.json
+++ b/workspaces/arborist/test/fixtures/dev-deps/node_modules/diff-frag/package.json
@@ -31,7 +31,7 @@
   "deprecated": false,
   "description": "Take a big diff with a 2-line header and turn it into frags with only a reasonable amount of context",
   "devDependencies": {
-    "tap": "^14.9.2"
+    "tap": "^18.0.0"
   },
   "files": [
     "index.js"