diff --git a/package.json b/package.json
index 0018981f..bf96c230 100644
--- a/package.json
+++ b/package.json
@@ -62,14 +62,11 @@
     "ghpages": "npm run jsdoc && npm run validator"
   },
   "exports": {
-    "import": "./dist/ical.min.js",
-    "require": "./dist/ical.es5.min.cjs"
+    "import": "./dist/ical.min.js"
   },
   "files": [
     "dist/ical.js",
     "dist/ical.min.js",
-    "dist/ical.es5.cjs",
-    "dist/ical.es5.min.cjs",
     "lib/ical/*.js"
   ],
   "mocha": {
diff --git a/rollup.config.js b/rollup.config.js
index ce5181e1..9196dcd3 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -27,26 +27,7 @@ export default [{
       banner: LICENSE,
       format: 'es',
       exports: 'default',
-      plugins: [terser(TERSER_OPTIONS)]
-    }
-  ]
-}, {
-  input: 'lib/ical/module.js',
-  output: [
-    {
-      file: 'dist/ical.es5.cjs',
-      exports: 'default',
-      name: 'ICAL',
-      format: 'umd',
-      banner: LICENSE,
-    },
-    {
-      file: 'dist/ical.es5.min.cjs',
-      exports: 'default',
-      name: 'ICAL',
-      format: 'umd',
-      banner: LICENSE,
-      plugins: [terser(TERSER_OPTIONS)],
+      plugins: [terser()]
     }
   ],
   plugins: [