diff --git a/js/gulp/package-task.js b/js/gulp/package-task.js
index 7b4b15a33e6..ad56d172eae 100644
--- a/js/gulp/package-task.js
+++ b/js/gulp/package-task.js
@@ -49,6 +49,12 @@ const createMainPackageJson = (target, format) => (orig) => ({
     browser: `${mainExport}.es5.min.js`,
     [`browser:es2015`]: `${mainExport}.es2015.min.js`,
     [`@std/esm`]: { esm: `mjs` },
+    // Temporary workaround until https://github.com/Microsoft/tslib/pull/44 is merged
+    scripts: {
+        postinstall: `npm i shx && npm run tslib_mjs && npm run tslib_pkg && npm r shx`,
+        tslib_mjs: `shx cp $(node -e \"console.log(require.resolve('tslib/tslib.es6.js'))\") $(node -e \"var r=require,p=r('path');console.log(p.join(p.dirname(r.resolve('tslib')),'tslib.mjs'))\")`,
+        tslib_pkg: `node -e \"var r=require,p=r('path'),f=r('fs'),k=p.join(p.dirname(r.resolve('tslib')),'package.json'),x=JSON.parse(f.readFileSync(k));x.main='tslib';f.writeFileSync(k,JSON.stringify(x))\"`
+    }
 });
   
 const createTypeScriptPackageJson = (target, format) => (orig) => ({
diff --git a/js/package.json b/js/package.json
index 24bc27f5b63..1a110b2d5de 100644
--- a/js/package.json
+++ b/js/package.json
@@ -25,7 +25,8 @@
     "lint": "npm-run-all -p lint:*",
     "lint:src": "tslint --fix --project -p tsconfig.json -c tslint.json \"src/**/*.ts\"",
     "lint:test": "tslint --fix --project -p test/tsconfig.json -c tslint.json \"test/**/*.ts\"",
-    "prepublishOnly": "echo \"Error: do 'npm run release' instead of 'npm publish'\" && exit 1"
+    "prepublishOnly": "echo \"Error: do 'npm run release' instead of 'npm publish'\" && exit 1",
+    "postinstall": "shx cp node_modules/tslib/tslib.es6.js node_modules/tslib/tslib.mjs"
   },
   "repository": {
     "type": "git",
@@ -54,7 +55,8 @@
   },
   "dependencies": {
     "flatbuffers": "trxcllnt/flatbuffers-esm",
-    "text-encoding": "0.6.4"
+    "text-encoding-utf-8": "^1.0.2",
+    "tslib": "^1.8.0"
   },
   "devDependencies": {
     "@std/esm": "0.13.0",
@@ -90,10 +92,8 @@
     "rxjs": "5.5.2",
     "shx": "0.2.2",
     "source-map-loader": "0.2.3",
-    "text-encoding-utf-8": "1.0.1",
     "trash": "4.1.0",
     "ts-jest": "21.2.1",
-    "tslib": "1.8.0",
     "tslint": "5.8.0",
     "typescript": "2.6.1",
     "uglifyjs-webpack-plugin": "1.0.1",