diff --git a/.changeset/nine-tomatoes-smash.md b/.changeset/nine-tomatoes-smash.md
new file mode 100644
index 000000000..80a9dcde9
--- /dev/null
+++ b/.changeset/nine-tomatoes-smash.md
@@ -0,0 +1,5 @@
+---
+'@vercel/edge-config': major
+---
+
+drop cjs support
diff --git a/.changeset/olive-spiders-boil.md b/.changeset/olive-spiders-boil.md
new file mode 100644
index 000000000..183b193ac
--- /dev/null
+++ b/.changeset/olive-spiders-boil.md
@@ -0,0 +1,5 @@
+---
+'@vercel/edge-config': patch
+---
+
+fix dynamic import by adding webpackIgnore comment
diff --git a/package.json b/package.json
index b8aa97c7d..5bb9f0677 100644
--- a/package.json
+++ b/package.json
@@ -6,11 +6,7 @@
   "license": "MIT",
   "sideEffects": false,
   "type": "module",
-  "exports": {
-    "import": "./dist/index.js",
-    "require": "./dist/index.cjs"
-  },
-  "main": "./dist/index.cjs",
+  "exports": "./dist/index.js",
   "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "files": [
diff --git a/src/index.ts b/src/index.ts
index 3dbfa6043..ecd51ce40 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -85,7 +85,9 @@ async function getLocalEdgeConfig(
   edgeConfigId: string,
 ): Promise<EmbeddedEdgeConfig | null> {
   const embeddedEdgeConfigPath = `/opt/edge-configs/${edgeConfigId}.json`;
-  return import(embeddedEdgeConfigPath).catch(
+  // the webpackIgnore: true comment below gets dropped by esbuild,
+  // but we add it back in manually using the onSuccess callback
+  return import(/* webpackIgnore: true */ embeddedEdgeConfigPath).catch(
     () => null,
   ) as Promise<EmbeddedEdgeConfig | null>;
 }
diff --git a/tsup.config.js b/tsup.config.js
index 412090fc0..f4afaddca 100644
--- a/tsup.config.js
+++ b/tsup.config.js
@@ -1,9 +1,10 @@
+import fs from 'node:fs';
 import { defineConfig } from 'tsup';
 
 // eslint-disable-next-line import/no-default-export
 export default defineConfig({
   entry: ['src/index.ts'],
-  format: ['esm', 'cjs'],
+  format: ['esm'],
   splitting: true,
   sourcemap: false,
   minify: true,
@@ -11,4 +12,12 @@ export default defineConfig({
   skipNodeModulesBundle: true,
   dts: true,
   external: ['node_modules'],
+  onSuccess: () => {
+    const path = './dist/index.js';
+    const content = fs.readFileSync(path, 'utf-8');
+    fs.writeFileSync(
+      path,
+      content.replace('import(', 'import(/* webpackIgnore: true */'),
+    );
+  },
 });