diff --git a/blocks/a11y-testing-block/package.json b/blocks/a11y-testing-block/package.json
index 471e9f97ee..23f4f8b24f 100644
--- a/blocks/a11y-testing-block/package.json
+++ b/blocks/a11y-testing-block/package.json
@@ -23,7 +23,7 @@
     "lint": "eslint --ext js --ext jsx features"
   },
   "devDependencies": {
-    "axe-core": "^3.5.0",
+    "axe-core": "^4.6.3",
     "requestidlecallback": "^0.3.0"
   },
   "gitHead": "9a4082d79cb66c23454d8a3ff83809b4e13f760c"