diff --git a/lib/core/byte-data.js b/lib/core/byte-data.js
index d562fcc9..a1e5db89 100644
--- a/lib/core/byte-data.js
+++ b/lib/core/byte-data.js
@@ -1,9 +1,13 @@
+const encodeUtf8 = require('encode-utf8')
 const Mode = require('./mode')
 
 function ByteData (data) {
   this.mode = Mode.BYTE
-  if (typeof (data) === 'string') {
-    this.data = new TextEncoder().encode(data)
+  if (typeof (data) === 'string' && typeof TextEncoder === 'undefined') {
+    this.data = encodeUtf8(data);
+    this.data = new Uint8Array(data)
+  } else if (typeof (data) === 'string') {
+    this.data = new TextEncoder().encode(data);
   } else {
     this.data = new Uint8Array(data)
   }
diff --git a/package.json b/package.json
index 6e97c936..66509e7a 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
   },
   "dependencies": {
     "dijkstrajs": "^1.0.1",
+    "encode-utf8": "^1.0.3",
     "pngjs": "^5.0.0",
     "yargs": "^15.3.1"
   },