diff --git a/README.md b/README.md
index e82c607..579e24c 100644
--- a/README.md
+++ b/README.md
@@ -75,17 +75,19 @@ v12.18.1
 > secp256k1-benchmark@0.0.0 start /Users/peterlai/Desktop/Projects/js-secp256k1/benchmarks
 > node index.js
 
-Secp256k1 WASM (current) x 3,911 ops/sec ±0.84% (96 runs sampled)
-GYP Binding (secp256k1) x 1,162 ops/sec ±0.67% (92 runs sampled)
-Pure JS (elliptic) x 1,255 ops/sec ±0.16% (96 runs sampled)
+Secp256k1 WASM (current) x 3,979 ops/sec ±0.22% (94 runs sampled)
+Secp256k1 0.2.1 WASM (current) x 3,865 ops/sec ±1.08% (96 runs sampled)
+GYP Binding (secp256k1) x 1,156 ops/sec ±1.17% (93 runs sampled)
+Pure JS (elliptic) x 1,249 ops/sec ±0.57% (96 runs sampled)
 Sign: fastest is Secp256k1 WASM (current)
-Secp256k1 WASM (current) x 1,671 ops/sec ±1.32% (96 runs sampled)
+Secp256k1 WASM (current) x 2,275 ops/sec ±0.55% (98 runs sampled)
+Secp256k1 0.2.1 WASM (current) x 1,734 ops/sec ±0.07% (97 runs sampled)
 GYP Binding (secp256k1): 
-Pure JS (elliptic) x 393 ops/sec ±2.32% (77 runs sampled)
+Pure JS (elliptic) x 460 ops/sec ±0.32% (93 runs sampled)
 Recover: fastest is Secp256k1 WASM (current)
-Secp256k1 WASM (current) x 1,647 ops/sec ±1.68% (87 runs sampled)
+Secp256k1 WASM (current) x 2,757 ops/sec ±0.08% (96 runs sampled)
 GYP Binding (secp256k1): 
-Pure JS (elliptic) x 499 ops/sec ±2.94% (84 runs sampled)
+Pure JS (elliptic) x 548 ops/sec ±0.34% (95 runs sampled)
 Verify: fastest is Secp256k1 WASM (current)
 ```
 
diff --git a/benchmarks/index.js b/benchmarks/index.js
index bce2141..4c685af 100644
--- a/benchmarks/index.js
+++ b/benchmarks/index.js
@@ -1,54 +1,59 @@
 const benchmark = require('benchmark')
+const secp256k121Async = require('js-secp256k1/dist/node-bundle.js')
 const secp256k1Async = require('../dist/node-bundle.js')
 const obindings = require('secp256k1')
 const elliptic = require('elliptic')
 const ec = new elliptic.ec('secp256k1')
 
 secp256k1Async().then(function (secp256k1Wasm) {
-  const privkeyBuf = Buffer.from([70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70])
-  const ecprivkey = ec.keyFromPrivate(privkeyBuf)
-  const msg = require('crypto').randomBytes(32)
-  const pubkey = secp256k1Wasm.privkeyToPubkey(privkeyBuf)
-  const cpubkey = secp256k1Wasm.serializePubkey(pubkey, true)
-  new benchmark.Suite('Sign')
-    .add('Secp256k1 WASM (current)', () => secp256k1Wasm.sign(msg, privkeyBuf))
-    .add('GYP Binding (secp256k1)', () => obindings.sign(msg, privkeyBuf))
-    .add('Pure JS (elliptic)', () => ecprivkey.sign(msg))
-    .on('cycle', (event) => {
-      console.log(String(event.target))
-    })
-    .on('complete', function () {
-      console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
-    })
-    .run()
+  secp256k121Async().then(function (secp256k121Wasm) {
+    const privkeyBuf = Buffer.from([70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70,70])
+    const ecprivkey = ec.keyFromPrivate(privkeyBuf)
+    const msg = require('crypto').randomBytes(32)
+    const pubkey = secp256k1Wasm.privkeyToPubkey(privkeyBuf)
+    const cpubkey = secp256k1Wasm.serializePubkey(pubkey, true)
+    new benchmark.Suite('Sign')
+      .add('Secp256k1 WASM (current)', () => secp256k1Wasm.sign(msg, privkeyBuf))
+      .add('Secp256k1 0.2.1 WASM (current)', () => secp256k121Wasm.sign(msg, privkeyBuf))
+      .add('GYP Binding (secp256k1)', () => obindings.sign(msg, privkeyBuf))
+      .add('Pure JS (elliptic)', () => ecprivkey.sign(msg))
+      .on('cycle', (event) => {
+        console.log(String(event.target))
+      })
+      .on('complete', function () {
+        console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
+      })
+      .run()
 
-  const sig = secp256k1Wasm.sign(msg, privkeyBuf)
-  const sig2 = {
-    r: sig.signature.slice(0, 32),
-    s: sig.signature.slice(32)
-  }
+    const sig = secp256k1Wasm.sign(msg, privkeyBuf)
+    const sig2 = {
+      r: sig.signature.slice(0, 32),
+      s: sig.signature.slice(32)
+    }
 
-  new benchmark.Suite('Recover')
-    .add('Secp256k1 WASM (current)', () => secp256k1Wasm.recover(msg, sig.signature, sig.recovery))
-    .add('GYP Binding (secp256k1)', () => obindings.recover(msg, sig.signature, sig.recovery))
-    .add('Pure JS (elliptic)', () => ec.recoverPubKey(msg, sig2, sig.recovery))
-    .on('cycle', (event) => {
-      console.log(String(event.target))
-    })
-    .on('complete', function () {
-      console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
-    })
-    .run()
+    new benchmark.Suite('Recover')
+      .add('Secp256k1 WASM (current)', () => secp256k1Wasm.recover(msg, sig.signature, sig.recovery))
+      .add('Secp256k1 0.2.1 WASM (current)', () => secp256k121Wasm.recover(msg, sig.signature, sig.recovery))
+      .add('GYP Binding (secp256k1)', () => obindings.recover(msg, sig.signature, sig.recovery))
+      .add('Pure JS (elliptic)', () => ec.recoverPubKey(msg, sig2, sig.recovery))
+      .on('cycle', (event) => {
+        console.log(String(event.target))
+      })
+      .on('complete', function () {
+        console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
+      })
+      .run()
 
-  new benchmark.Suite('Verify')
-    .add('Secp256k1 WASM (current)', () => secp256k1Wasm.verify(msg, sig.signature, pubkey))
-    .add('GYP Binding (secp256k1)', () => obindings.verify(msg, sig.signature, cpubkey))
-    .add('Pure JS (elliptic)', () => ecprivkey.verify(msg, sig2))
-    .on('cycle', (event) => {
-      console.log(String(event.target))
-    })
-    .on('complete', function () {
-      console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
-    })
-    .run()
+    new benchmark.Suite('Verify')
+      .add('Secp256k1 WASM (current)', () => secp256k1Wasm.verify(msg, sig.signature, pubkey))
+      .add('GYP Binding (secp256k1)', () => obindings.verify(msg, sig.signature, cpubkey))
+      .add('Pure JS (elliptic)', () => ecprivkey.verify(msg, sig2))
+      .on('cycle', (event) => {
+        console.log(String(event.target))
+      })
+      .on('complete', function () {
+        console.log(`${this.name}: fastest is ${this.filter('fastest').map('name')}`)
+      })
+      .run()
+  })
 })
diff --git a/benchmarks/package-lock.json b/benchmarks/package-lock.json
index d5d7c78..58a86bd 100644
--- a/benchmarks/package-lock.json
+++ b/benchmarks/package-lock.json
@@ -4,15 +4,266 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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+      "requires": {
+        "@babel/highlight": "^7.10.4"
+      }
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+        "@babel/parser": "^7.12.3",
+        "@babel/template": "^7.10.4",
+        "@babel/traverse": "^7.12.1",
+        "@babel/types": "^7.12.1",
+        "convert-source-map": "^1.7.0",
+        "debug": "^4.1.0",
+        "gensync": "^1.0.0-beta.1",
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+        "semver": "^5.4.1",
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@@ -216,14 +674,14 @@
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-        "drbg.js": "1.0.1",
-        "elliptic": "6.5.1",
-        "nan": "2.14.0",
-        "safe-buffer": "5.2.0"
+        "bindings": "^1.5.0",
+        "bip66": "^1.1.5",
+        "bn.js": "^4.11.8",
+        "create-hash": "^1.2.0",
+        "drbg.js": "^1.0.1",
+        "elliptic": "^6.4.1",
+        "nan": "^2.14.0",
+        "safe-buffer": "^5.1.2"
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@@ -242,13 +700,93 @@
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+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
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-        "inherits": "2.0.4",
-        "safe-buffer": "5.2.0"
+        "inherits": "^2.0.1",
+        "safe-buffer": "^5.0.1"
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+    "shebang-command": {
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+      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
+      "integrity": "sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==",
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+    "shebang-regex": {
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+      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
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+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w="
+    },
+    "supports-color": {
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+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
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+    "to-fast-properties": {
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+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4="
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+        "@babel/traverse": "^7.0.0-beta.39",
+        "@babel/types": "^7.0.0-beta.39",
+        "babylon": "^7.0.0-beta.39",
+        "webassembly-interpreter": "0.0.30"
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+      "resolved": "https://registry.npmjs.org/wasm-loader/-/wasm-loader-1.3.0.tgz",
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+        "wasm-dce": "^1.0.0"
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+      "resolved": "https://registry.npmjs.org/webassembly-floating-point-hex-parser/-/webassembly-floating-point-hex-parser-0.1.2.tgz",
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+    "webassembly-interpreter": {
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+      "resolved": "https://registry.npmjs.org/webassembly-interpreter/-/webassembly-interpreter-0.0.30.tgz",
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+        "long": "^3.2.0",
+        "webassembly-floating-point-hex-parser": "0.1.2"
+      }
+    },
+    "which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
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diff --git a/benchmarks/package.json b/benchmarks/package.json
index 5576d7d..ad8eb74 100644
--- a/benchmarks/package.json
+++ b/benchmarks/package.json
@@ -9,6 +9,7 @@
   "dependencies": {
     "benchmark": "^2.1.2",
     "elliptic": "^6.5.3",
+    "js-secp256k1": "^0.2.1",
     "secp256k1": "^3.7.1"
   },
   "private": true