diff --git a/dev-docs/runtime-migration/spike/package.json b/dev-docs/runtime-migration/spike/package.json
index 01b02af6c0a..0477c4871d3 100644
--- a/dev-docs/runtime-migration/spike/package.json
+++ b/dev-docs/runtime-migration/spike/package.json
@@ -25,7 +25,7 @@
     "@observablehq/parser": "4.5.0",
     "acorn": "8.4.0",
     "acorn-class-fields": "1.0.0",
-    "acorn-walk": "8.2.0",
+    "acorn-walk": "8.3.5",
     "ansi_up": "6.0.2",
     "binary-search-bounds": "2.0.5",
     "blueimp-md5": "2.19.0",