diff --git a/demos/deno/README.md b/demos/deno/README.md
index 7054242cf6..9772c9725d 100644
--- a/demos/deno/README.md
+++ b/demos/deno/README.md
@@ -1,6 +1,6 @@
 # ArcGIS REST JS + Deno
 
-ArcGIS REST JS is fully compatible with Deno. You can import the packages from the [Skypack CDN](https://www.skypack.dev/search?q=%40esri%2Farcgis-rest-&p=1) for the easiest use. This demo shows importing from a local install with an import map.
+ArcGIS REST JS is fully compatible with Deno. You can import the packages from the [esm.run CDN](https://www.jsdelivr.com/esm) for the easiest use. This demo shows importing from a local install with an import map.
 
 You can run this demo with:
 
diff --git a/demos/express-oauth-advanced/pages/app.html b/demos/express-oauth-advanced/pages/app.html
index 21bffd3c74..e0e367f652 100644
--- a/demos/express-oauth-advanced/pages/app.html
+++ b/demos/express-oauth-advanced/pages/app.html
@@ -45,8 +45,8 @@ <h1>The App!</h1>
 </calcite-modal>
 
 <script type="module">
-  import { ArcGISIdentityManager } from 'https://cdn.skypack.dev/@esri/arcgis-rest-request@^4.0.0';
-  import { searchItems, SearchQueryBuilder } from 'https://cdn.skypack.dev/@esri/arcgis-rest-portal@^4.0.0';
+  import { ArcGISIdentityManager } from 'https://esm.run/@esri/arcgis-rest-request@^4.0.0';
+  import { searchItems, SearchQueryBuilder } from 'https://esm.run/@esri/arcgis-rest-portal@^4.0.0';
 
   // We need to customize the behavior of how  ArcGISIdentityManager handles refreshing.
   class ManagerWithCustomRefresh extends ArcGISIdentityManager {
diff --git a/package.json b/package.json
index 810c3d28b7..f377d858f3 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,6 @@
     "precommit": "lint-staged",
     "docs:build": "rimraf docs/build && unzip -d docs/build docs/v3-archive.zip && npm run typedoc",
     "lint": "eslint ./packages --ext .ts",
-    "skypack-check": "npm exec -w ./packages package-check",
     "srihash": "node scripts/generate-sri-hashes.js",
     "test": "npm run lint && npm run test:compile && npm run test:node && npm run test:chrome",
     "test:compile": "npm run build:esm",
@@ -71,7 +70,6 @@
     "@semantic-release/changelog": "^6.0.1",
     "@semantic-release/git": "^10.0.1",
     "@semantic-release/npm": "^8.0.0",
-    "@skypack/package-check": "^0.2.2",
     "@types/fetch-mock": "^7.3.5",
     "@types/jasmine": "^2.8.2",
     "@types/node": "^12.20.4",