diff --git a/.changeset/good-ants-fix.md b/.changeset/good-ants-fix.md
new file mode 100644
index 0000000000..00a27804e9
--- /dev/null
+++ b/.changeset/good-ants-fix.md
@@ -0,0 +1,6 @@
+---
+"llamaindex": patch
+"@llamaindex/env": patch
+---
+
+Allow Node 18 again (throw run-time error if not possible) to make Stackblitz work
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bfdb7a0742..4e5162b206 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [20.x, 22.x, 23.x]
+        node-version: [18.x, 20.x, 22.x, 23.x]
     name: E2E on Node.js ${{ matrix.node-version }}
     runs-on: ubuntu-latest
     steps:
@@ -53,7 +53,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [20.x, 22.x, 23.x]
+        node-version: [18.x, 20.x, 22.x, 23.x]
     name: Test on Node.js ${{ matrix.node-version }}
     runs-on: ubuntu-latest
     steps:
diff --git a/packages/env/src/internal/multi-model/node.ts b/packages/env/src/internal/multi-model/node.ts
index b653cf6161..13826c67b7 100644
--- a/packages/env/src/internal/multi-model/node.ts
+++ b/packages/env/src/internal/multi-model/node.ts
@@ -7,6 +7,13 @@ export {
 } from "./shared.js";
 
 export async function loadTransformers(onLoad: OnLoad) {
+  const nodeVersions = process.versions.node.split(".");
+  if (nodeVersions[0] && parseInt(nodeVersions[0], 10) < 20) {
+    throw new Error(
+      "@huggingface/transformers is not supported on Node.js versions below 20",
+    );
+  }
+
   if (getTransformers() === null) {
     setTransformers(await import("@huggingface/transformers"));
   } else {
diff --git a/packages/llamaindex/package.json b/packages/llamaindex/package.json
index f221acfa94..21ba3e5951 100644
--- a/packages/llamaindex/package.json
+++ b/packages/llamaindex/package.json
@@ -86,7 +86,6 @@
     }
   },
   "devDependencies": {
-    "@huggingface/transformers": "^3.0.2",
     "@swc/cli": "^0.5.0",
     "@swc/core": "^1.9.2",
     "@vercel/postgres": "^0.10.0",
@@ -98,7 +97,7 @@
     "typescript": "^5.6.3"
   },
   "engines": {
-    "node": ">=20.0.0"
+    "node": ">=18.0.0"
   },
   "types": "./dist/type/index.d.ts",
   "main": "./dist/cjs/index.js",