diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index d54fa2f..f88beb6 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -16,7 +16,20 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+    - name: Install dependencies
+      run: |
+        sudo npm i -g -y wasm-pack
+        rustup toolchain install nightly-2023-03-28-x86_64-unknown-linux-gnu
+        rustup component add rust-src --toolchain nightly-2023-03-28-x86_64-unknown-linux-gnu
     - name: Build
-      run: cargo build --verbose
+      run: make pack
     - name: Run tests
       run: cargo test --verbose
+    - name: Upload artifact
+      uses: actions/upload-artifact@v3
+      with:
+        name: npm_packages
+        path: |
+          js/*.tgz
+          pkg/*.tgz
+          pkg_multicore/*.tgz
diff --git a/Makefile b/Makefile
index b31021f..6749a9f 100644
--- a/Makefile
+++ b/Makefile
@@ -30,6 +30,12 @@ publish: all
 	cd pkg_multicore; npm publish
 	cd js; npm publish
 
+.PHONE: pack
+pack: all
+	cd pkg; npm pack
+	cd pkg_multicore; npm pack
+	cd js; npm pack
+
 .PHONY: clean
 clean:
 	cargo clean
diff --git a/js/package-lock.json b/js/package-lock.json
index 75bcbd6..7bd28cf 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -1,18 +1,18 @@
 {
   "name": "pivx-shield",
-  "version": "1.0.7",
+  "version": "1.0.8",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "pivx-shield",
-      "version": "1.0.7",
+      "version": "1.0.8",
       "license": "MIT",
       "dependencies": {
         "bs58": "^5.0.0",
         "comlink": "^4.4.1",
-        "pivx-shield-rust": "^1.0.2",
-        "pivx-shield-rust-multicore": "^1.0.2",
+        "pivx-shield-rust": "^1.0.4",
+        "pivx-shield-rust-multicore": "^1.0.4",
         "uuid": "^9.0.0",
         "wasm-feature-detect": "^1.5.1"
       },
@@ -39,14 +39,14 @@
       "integrity": "sha512-+1dlx0aY5Jo1vHy/tSsIGpSkN4tS9rZSW8FIhG0JH/crs9wwweswIo/POr451r7bZww3hFbPAKnTpimzL/mm4Q=="
     },
     "node_modules/pivx-shield-rust": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/pivx-shield-rust/-/pivx-shield-rust-1.0.3.tgz",
-      "integrity": "sha512-v+HXDHe0N5oQP/6aAoRgHMWY8kE91cKBbu/xRplW8aexrm5tes62sc0oE9MohVgbAz6or2I95cv3bRj+/yfL7w=="
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/pivx-shield-rust/-/pivx-shield-rust-1.0.4.tgz",
+      "integrity": "sha512-pKsArAdQdqx5ookEYiOzANp8ZtEDOitUvsXpCRpUiAccKcymI8VBcll4WGijkAGpdPA9bktJYbE/WrSyY3Ja6g=="
     },
     "node_modules/pivx-shield-rust-multicore": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/pivx-shield-rust-multicore/-/pivx-shield-rust-multicore-1.0.3.tgz",
-      "integrity": "sha512-OmPNXF7npbww9cPAvha4FIirPOYfuFt8sl26ZKbmMT9Bl4pDpF3OgIyz9Dt2IhCqWub40Y8yLr7b5zekxdmibg=="
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/pivx-shield-rust-multicore/-/pivx-shield-rust-multicore-1.0.4.tgz",
+      "integrity": "sha512-uw5j+7990Y05iK/p3OF7m+uQF8OR0QNwmMhqoRdmpm2DYJW8MH7TgeTMsgXjqXZr1rae88yCSSmZEDRMre2mMA=="
     },
     "node_modules/typescript": {
       "version": "5.2.2",