diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 399db8e..cc727ae 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,6 +1,6 @@
 on:
   release:
-    types: [created]
+    types: [released]
 
 jobs:
   publish:
diff --git a/.github/workflows/publishprerelease.yml b/.github/workflows/publishprerelease.yml
new file mode 100644
index 0000000..182d085
--- /dev/null
+++ b/.github/workflows/publishprerelease.yml
@@ -0,0 +1,20 @@
+on:
+  release:
+    types: [prereleased]
+
+jobs:
+  publish:
+    if: github.event_name == 'release' && github.event.action == 'published'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+      - run: npm ci
+      - run: npm test
+      - run: npm run build
+      - uses: JS-DevTools/npm-publish@0f451a94170d1699fd50710966d48fb26194d939
+        with:
+          tag: prerelease
+          token: ${{ secrets.NPM_TOKEN }}
diff --git a/package-lock.json b/package-lock.json
index 569cfb9..902f0db 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "fhevmjs",
-  "version": "0.3.2",
+  "version": "0.4.0-0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "fhevmjs",
-      "version": "0.3.2",
+      "version": "0.4.0-0",
       "license": "BSD-3-Clause-Clear",
       "dependencies": {
         "commander": "^11.0.0",
@@ -14,9 +14,9 @@
         "ethers": "^6.6.4",
         "libsodium": "^0.7.11",
         "libsodium-wrappers": "^0.7.11",
-        "node-tfhe": "^0.4.1",
+        "node-tfhe": "^0.5.1",
         "sha3": "^2.1.4",
-        "tfhe": "^0.4.1"
+        "tfhe": "^0.5.1"
       },
       "bin": {
         "fhevm": "bin/fhevm.js"
@@ -4519,9 +4519,9 @@
       "dev": true
     },
     "node_modules/node-tfhe": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/node-tfhe/-/node-tfhe-0.4.1.tgz",
-      "integrity": "sha512-GysZYDRnvL8UyywaK/+/Rvqvpdk5pIRR8MaCqEJmaG3rGo/8OXwPzb6WJaAyYNZz2VmimCGBxznkuNVRviFHMQ=="
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/node-tfhe/-/node-tfhe-0.5.1.tgz",
+      "integrity": "sha512-jSPB9gsEoPL21Q5gNWTxxedJ0YxKDfnb7W3uIcKjEGvsw0QMMV4uD/NsACNltDplQ2cmIsK/z+4jC5LJxfw5kQ=="
     },
     "node_modules/normalize-path": {
       "version": "3.0.0",
@@ -5467,9 +5467,9 @@
       }
     },
     "node_modules/tfhe": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/tfhe/-/tfhe-0.4.1.tgz",
-      "integrity": "sha512-Ok8CrrryBjtgCbPliDG3YuAFX0oJLS4y9pCajF6TSORyKYIDVtfOKbVntG2gZFOeUukUTHSI5FVofqhX5GkPTw=="
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/tfhe/-/tfhe-0.5.1.tgz",
+      "integrity": "sha512-OZt4nnz8YW/IjmrVNyNBRkiNuO2WFmDh5zPKTL8UiUzUHsVN+4Nqnz2XqetbbCfCXGrVfTTNkXU8zkuGXIV0BA=="
     },
     "node_modules/tmpl": {
       "version": "1.0.5",
@@ -9462,9 +9462,9 @@
       "dev": true
     },
     "node-tfhe": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/node-tfhe/-/node-tfhe-0.4.1.tgz",
-      "integrity": "sha512-GysZYDRnvL8UyywaK/+/Rvqvpdk5pIRR8MaCqEJmaG3rGo/8OXwPzb6WJaAyYNZz2VmimCGBxznkuNVRviFHMQ=="
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/node-tfhe/-/node-tfhe-0.5.1.tgz",
+      "integrity": "sha512-jSPB9gsEoPL21Q5gNWTxxedJ0YxKDfnb7W3uIcKjEGvsw0QMMV4uD/NsACNltDplQ2cmIsK/z+4jC5LJxfw5kQ=="
     },
     "normalize-path": {
       "version": "3.0.0",
@@ -10142,9 +10142,9 @@
       }
     },
     "tfhe": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/tfhe/-/tfhe-0.4.1.tgz",
-      "integrity": "sha512-Ok8CrrryBjtgCbPliDG3YuAFX0oJLS4y9pCajF6TSORyKYIDVtfOKbVntG2gZFOeUukUTHSI5FVofqhX5GkPTw=="
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/tfhe/-/tfhe-0.5.1.tgz",
+      "integrity": "sha512-OZt4nnz8YW/IjmrVNyNBRkiNuO2WFmDh5zPKTL8UiUzUHsVN+4Nqnz2XqetbbCfCXGrVfTTNkXU8zkuGXIV0BA=="
     },
     "tmpl": {
       "version": "1.0.5",
diff --git a/package.json b/package.json
index a88e5fe..1982202 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fhevmjs",
-  "version": "0.3.2",
+  "version": "0.4.0-0",
   "description": "fhEVM SDK for blockchain using TFHE",
   "main": "lib/node.cjs",
   "types": "lib/node.d.ts",
@@ -44,9 +44,9 @@
     "ethers": "^6.6.4",
     "libsodium": "^0.7.11",
     "libsodium-wrappers": "^0.7.11",
-    "node-tfhe": "^0.4.1",
+    "node-tfhe": "^0.5.1",
     "sha3": "^2.1.4",
-    "tfhe": "^0.4.1"
+    "tfhe": "^0.5.1"
   },
   "devDependencies": {
     "@rollup/plugin-alias": "^5.0.0",
diff --git a/src/tfhe.ts b/src/tfhe.ts
index 899c1be..aa41e3d 100644
--- a/src/tfhe.ts
+++ b/src/tfhe.ts
@@ -11,8 +11,10 @@ export const createTfheKeypair = () => {
   const block_params = new ShortintParameters(
     ShortintParametersName.PARAM_MESSAGE_2_CARRY_2_COMPACT_PK_PBS_KS,
   );
-  let config = TfheConfigBuilder.all_disabled()
-    .enable_custom_integers(block_params)
+  // const configBuilder = new TfheConfigBuilder();
+  // const config = configBuilder.use_custom_parameters(block_params).build();
+  const config = TfheConfigBuilder.default()
+    .use_custom_parameters(block_params)
     .build();
   let clientKey = TfheClientKey.generate(config);
   let publicKey = TfheCompactPublicKey.new(clientKey);