diff --git a/.github/workflows/example-builds-nightly.yml b/.github/workflows/example-builds-nightly.yml
index db50c37..17e4b34 100644
--- a/.github/workflows/example-builds-nightly.yml
+++ b/.github/workflows/example-builds-nightly.yml
@@ -23,7 +23,10 @@ jobs:
       - uses: actions/checkout@v1.0.0
       
       - name: "Install dependencies"
-        run: npm install --production
+        run: |
+          npm install
+          npm run build
+          npm run pack
 
       - name: "Set up Julia (nightly)"
         uses: ./
diff --git a/.github/workflows/example-builds.yml b/.github/workflows/example-builds.yml
index 7c399fa..d4fdad7 100644
--- a/.github/workflows/example-builds.yml
+++ b/.github/workflows/example-builds.yml
@@ -20,7 +20,10 @@ jobs:
       - uses: actions/checkout@v1.0.0
 
       - name: "Install dependencies"
-        run: npm install --production
+        run: |
+          npm install
+          npm run build
+          npm run pack
 
       - name: "Set up Julia"
         uses: ./
diff --git a/.gitignore b/.gitignore
index 692e74b..bb7cf0b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 node_modules/
 __tests__/runner/*
+dist/
diff --git a/action.yml b/action.yml
index d50fe74..2238557 100644
--- a/action.yml
+++ b/action.yml
@@ -15,7 +15,7 @@ inputs:
     default: 'false'
 runs:
   using: 'node12'
-  main: 'lib/setup-julia.js'
+  main: 'dist/index.js'
 branding:
   icon: 'download'
   color: 'green'
diff --git a/bin/build-release b/bin/build-release
index 43dc24f..f581f2f 100644
--- a/bin/build-release
+++ b/bin/build-release
@@ -1,13 +1,44 @@
 #!/bin/sh
 
-git checkout -b releases/"$1"
+branch_name="$(git symbolic-ref --short -q HEAD)"
+version="v$(jq -r .version package.json)"
+repo="$1"
+
+if [ -z "$repo" ]; then
+    echo "ERROR: must specify repository"
+    exit 1
+fi
+
+echo "=== debug info ==="
+echo "branch: $branch_name"
+echo "version: $version"
+echo "repo: $repo"
+echo "=================="
+echo ""
+
+# Check that the version doesn't exist yet
+version_exists="$(curl -s https://api.github.com/repos/"$repo"/tags -H "Accept: application/vnd.github.v3.full+json" | jq -r '.[] | select(.name == "'"$version"'") | .name')"
+if [ -n "$version_exists" ]; then
+    echo "ERROR: version $version already exists"
+    exit 1
+fi
+
+git checkout -b releases/"$version"
 
 npm install
 npm run build
 npm test
-npm prune --production
+npm run pack
 
-sed -i 's/node_modules/!node_modules/g' .gitignore
-git add node_modules
+sed -i 's/dist/!dist/g' .gitignore
+git add dist
 git commit -a -m "Add production dependencies & build"
-git tag "$1"
+
+# Tags
+major_minor="$(sed 's/\.[^.]*$//' <<< "$version")"
+major="$(sed 's/\.[^.]*$//' <<< "$major_minor")"
+
+git tag "$version"
+git tag -f "$major_minor"
+git tag -f "$major"
+git tag -f "latest"
diff --git a/bin/build-test-release b/bin/build-test-release
index 8f2b3ac..efd3561 100644
--- a/bin/build-test-release
+++ b/bin/build-test-release
@@ -1,14 +1,36 @@
 #!/bin/sh
 
 branch_name="$(git symbolic-ref --short -q HEAD)"
+version="v$(jq -r .version package.json)"
+repo="$1"
 
-git checkout -B test/"$branch_name"
+if [ -z "$repo" ]; then
+    echo "ERROR: must specify repository"
+    exit 1
+fi
+
+echo "=== debug info ==="
+echo "branch: $branch_name"
+echo "version: $version"
+echo "repo: $repo"
+echo "=================="
+echo ""
+
+# Check that the version doesn't exist yet
+version_exists="$(curl -s https://api.github.com/repos/"$repo"/tags -H "Accept: application/vnd.github.v3.full+json" | jq -r '.[] | select(.name == "'"$version"'") | .name')"
+if [ -n "$version_exists" ]; then
+    echo "ERROR: version $version already exists"
+    exit 1
+fi
+
+git checkout -B test/"$branch_name"/releases/"$version"
 
 npm install
 npm run build
 npm test
-npm prune --production
+npm run pack
 
-sed -i 's/node_modules/!node_modules/g' .gitignore
-git add node_modules
+# Add dist/ to git and commit it
+sed -i 's/dist/!dist/g' .gitignore
+git add dist
 git commit -a -m "Add production dependencies & build"
diff --git a/package-lock.json b/package-lock.json
index 4d0d6ec..bb26c35 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1495,6 +1495,12 @@
       "integrity": "sha512-FA/BWv8t8ZWJ+gEOnLLd8ygxH/2UFbAvgEonyfN6yWGLKc7zVjbpl2Y4CTjid9h2RfgPP6SEt6uHwEOply00yw==",
       "dev": true
     },
+    "@zeit/ncc": {
+      "version": "0.22.0",
+      "resolved": "https://registry.npmjs.org/@zeit/ncc/-/ncc-0.22.0.tgz",
+      "integrity": "sha512-zaS6chwztGSLSEzsTJw9sLTYxQt57bPFBtsYlVtbqGvmDUsfW7xgXPYofzFa1kB9ur2dRop6IxCwPnWLBVCrbQ==",
+      "dev": true
+    },
     "abab": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.3.tgz",
diff --git a/package.json b/package.json
index bc38674..e7f4a3d 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,12 @@
 {
   "name": "setup-julia",
-  "version": "0.1.0",
+  "version": "1.1.3",
   "private": true,
   "description": "setup Julia action",
   "main": "lib/setup-julia.js",
   "scripts": {
     "build": "tsc",
-    "format": "prettier --single-quote --print-width 120 --tab-width 4 --no-semi --write **/*.ts",
-    "format-check": "prettier  --single-quote --print-width 120 --tab-width 4 --no-semi --check **/*.ts",
+    "pack": "ncc build",
     "test": "jest"
   },
   "repository": {
@@ -32,6 +31,7 @@
     "@types/jest": "^24.0.13",
     "@types/node": "^12.12.7",
     "@types/semver": "^6.0.0",
+    "@zeit/ncc": "^0.22.0",
     "jest": "^24.8.0",
     "jest-circus": "^24.7.1",
     "prettier": "^1.17.1",