diff --git a/.github/workflows/usage.yml b/.github/workflows/usage.yml
index 5608b2eba..75d68ff7e 100644
--- a/.github/workflows/usage.yml
+++ b/.github/workflows/usage.yml
@@ -3,15 +3,41 @@ name: Package usage
 on: [push, pull_request]
 
 jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - name: npm install and build
+        run: |
+          npm install
+          npm run build
+      - name: Store build-output for later
+        uses: actions/upload-artifact@v2
+        with:
+          name: build-output
+          path: |
+            mustache.js
+            mustache.mjs
+
   package:
     runs-on: ubuntu-latest
 
+    needs: build
     steps:
       - uses: actions/checkout@v2
       - name: Setup Node.js
         uses: actions/setup-node@v1
         with:
           node-version: 14.x
+      - name: Get build-output from build step
+        uses: actions/download-artifact@v2
+        with:
+          name: build-output
       - name: Create package tarball
         run: |
           export ARCHIVE_FILENAME=$(npm pack | tail -n 1)
@@ -71,12 +97,17 @@ jobs:
   browser-usage:
     runs-on: ubuntu-latest
 
+    needs: build
     steps:
       - uses: actions/checkout@v1
       - name: Setup Node.js
         uses: actions/setup-node@v1
         with:
           node-version: 12.x
+      - name: Get build-output from build step
+        uses: actions/download-artifact@v2
+        with:
+          name: build-output
       - name: Install and test
         run: |
           npm ci
@@ -85,10 +116,15 @@ jobs:
   deno-usage:
     runs-on: ubuntu-latest
 
+    needs: build
     steps:
       - uses: actions/checkout@v1
       - uses: denolib/setup-deno@master
         with:
           deno-version: 'v1.0.0'
+      - name: Get build-output from build step
+        uses: actions/download-artifact@v2
+        with:
+          name: build-output
       - run: deno --version
       - run: deno test --allow-net=deno.land test/module-systems/deno-test.ts
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 8a4258914..0a86a51db 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -35,6 +35,27 @@ jobs:
           npm install
           npm run test-unit
 
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14.x
+      - name: npm install and build
+        run: |
+          npm install
+          npm run build
+      - name: Store build-output for later
+        uses: actions/upload-artifact@v2
+        with:
+          name: build-output
+          path: |
+            mustache.js
+            mustache.mjs
+
   tests-on-legacy:
     runs-on: ubuntu-latest
 
@@ -42,6 +63,7 @@ jobs:
       matrix:
         node-version: [0.10.x, 0.12.x, 4.x, 6.x, 8.x]
 
+    needs: build
     steps:
       - uses: actions/checkout@v2
         with:
@@ -50,6 +72,10 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
+      - name: Get build-output from build step
+        uses: actions/download-artifact@v2
+        with:
+          name: build-output
       - name: npm install and test
         run: |
           npm install mocha@3 chai@3
diff --git a/package.json b/package.json
index 48d672c4b..f5dda0608 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,8 @@
     "pre-test-browser": "node test/create-browser-suite.js",
     "test-browser": "npm run pre-test-browser && zuul -- test/context-test.js test/parse-test.js test/scanner-test.js test/render-test-browser.js",
     "test-browser-local": "npm run pre-test-browser && zuul --local 8080 -- test/context-test.js test/scanner-test.js test/parse-test.js test/render-test-browser.js",
-    "postversion": "scripts/bump-version-in-source"
+    "postversion": "scripts/bump-version-in-source",
+    "prepublishOnly": "npm run build"
   },
   "devDependencies": {
     "chai": "^3.4.0",