diff --git a/implementations/js-hyperjump/bowtie_hyperjump.js b/implementations/js-hyperjump/bowtie_hyperjump.js
index e81626030..4873424d2 100644
--- a/implementations/js-hyperjump/bowtie_hyperjump.js
+++ b/implementations/js-hyperjump/bowtie_hyperjump.js
@@ -10,7 +10,7 @@ import "@hyperjump/json-schema/draft-2019-09";
 import "@hyperjump/json-schema/draft-07";
 import "@hyperjump/json-schema/draft-06";
 import "@hyperjump/json-schema/draft-04";
-import packageJson from "./node_modules/@hyperjump/json-schema/package.json" assert { type: "json" };
+import packageJson from "./node_modules/@hyperjump/json-schema/package.json" with { type: "json" };
 
 const hyperjump_version = packageJson.version;
 
diff --git a/implementations/js-jsonschema/bowtie_jsonschema.js b/implementations/js-jsonschema/bowtie_jsonschema.js
index 0d76b48d3..9708dbed9 100644
--- a/implementations/js-jsonschema/bowtie_jsonschema.js
+++ b/implementations/js-jsonschema/bowtie_jsonschema.js
@@ -2,12 +2,12 @@ import readline from "readline/promises";
 import os from "os";
 import process from "process";
 import { Validator } from "jsonschema";
-import packageJson from "./node_modules/jsonschema/package.json" assert { type: "json" };
+import packageJson from "./node_modules/jsonschema/package.json" with { type: "json" };
 
-import draft3 from "json-metaschema/draft-03-schema.json" assert { type: "json" };
-import draft4 from "json-metaschema/draft-04-schema.json" assert { type: "json" };
-import draft6 from "json-metaschema/draft-06-schema.json" assert { type: "json" };
-import draft7 from "json-metaschema/draft-07-schema.json" assert { type: "json" };
+import draft3 from "json-metaschema/draft-03-schema.json" with { type: "json" };
+import draft4 from "json-metaschema/draft-04-schema.json" with { type: "json" };
+import draft6 from "json-metaschema/draft-06-schema.json" with { type: "json" };
+import draft7 from "json-metaschema/draft-07-schema.json" with { type: "json" };
 
 const jsonschema_version = packageJson.version;