diff --git a/package-lock.json b/package-lock.json
index 20a2cb7..b6c4512 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "bls-eth-wasm",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bls-eth-wasm",
-      "version": "1.1.0",
+      "version": "1.1.1",
       "license": "BSD-3-Clause"
     }
   }
diff --git a/package.json b/package.json
index 86b2f82..83daeb1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bls-eth-wasm",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "BLS signature for Node.js by WebAssembly for Ethereum 2.0",
   "main": "src/index.js",
   "scripts": {
diff --git a/src/bls.js b/src/bls.js
index e0a3028..548410e 100644
--- a/src/bls.js
+++ b/src/bls.js
@@ -1,11 +1,10 @@
 /**
  * @param createModule Async factory that returns an emcc initialized Module
  * In node, `const createModule = require(`./bls_c.js`)`
- * @param getRandomValues Function to get crypto quality random values
  */
 const ETH_MODE = true
 
-const _blsSetupFactory = (createModule, getRandomValues) => {
+const _blsSetupFactory = (createModule) => {
   const exports = {}
   /* eslint-disable */
   exports.BN254 = 0
@@ -809,7 +808,7 @@ const _blsSetupFactory = (createModule, getRandomValues) => {
   }
   exports.init = async (curveType = exports.ethMode ? exports.BLS12_381 : exports.BN254) => {
     exports.curveType = curveType
-    exports.getRandomValues = getRandomValues
+    exports.getRandomValues = crypto.getRandomValues.bind(crypto)
     exports.mod = await createModule({
       cryptoGetRandomValues: _cryptoGetRandomValues,
     })
diff --git a/src/index.js b/src/index.js
index edb603f..a44d623 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,6 @@
 const createModule = require('./bls_c.js')
 const blsSetupFactory = require('./bls')
-const crypto = require('crypto')
 
-const getRandomValues = crypto.randomFillSync
-const bls = blsSetupFactory(createModule, getRandomValues)
+const bls = blsSetupFactory(createModule)
 
 module.exports = bls