diff --git a/.github/actions/prototype-kit-test/action.yml b/.github/actions/prototype-kit-test/action.yml
index 5e61dcb3..f4b95a8b 100644
--- a/.github/actions/prototype-kit-test/action.yml
+++ b/.github/actions/prototype-kit-test/action.yml
@@ -1,4 +1,4 @@
-name: GOV.UK prototype kit
+name: GOV.UK prototype kit test
 
 on:
   workflow_call:
@@ -19,9 +19,6 @@ runs:
         cd package &&
         npm pack --pack-destination .
       shell: bash
-    - name: Test package
-      run: node tasks/test-package.js || exit 1
-      shell: bash
     - name: Create prototype
       run: >
         mkdir prototype &&
diff --git a/.github/actions/test-build/action.yml b/.github/actions/test-build/action.yml
new file mode 100644
index 00000000..69ea6441
--- /dev/null
+++ b/.github/actions/test-build/action.yml
@@ -0,0 +1,24 @@
+name: Test build
+
+on:
+  workflow_call:
+
+runs:
+  using: "composite"
+  steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-node@v3
+      with:
+        node-version-file: .nvmrc
+    - name: Install dependencies
+      run: npm ci
+      shell: bash
+    - name: Build Storybook
+      run: npm run build
+      shell: bash
+    - name: Build package
+      run: ./tasks/build-package.sh
+      shell: bash
+    - name: Test built package
+      run: node tasks/test-package.js || exit 1
+      shell: bash
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index 3c9ff080..bfc2c598 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -24,7 +24,8 @@ jobs:
       - check
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/lint
+      - name: Lint
+        uses: ./.github/actions/lint
       
   tests:
     runs-on: ubuntu-latest
@@ -32,15 +33,26 @@ jobs:
       - check
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/tests
+      - name: Tests
+        uses: ./.github/actions/tests
 
-  prototype-kit:
+  test-build:
     runs-on: ubuntu-latest
     needs:
       - check
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/prototype-kit-test
+      - name: Test build
+        uses: ./.github/actions/test-build
+
+  prototype-kit:
+    runs-on: ubuntu-latest
+    needs:
+      - test-build
+    steps:
+      - uses: actions/checkout@v3
+      - name: GOV.UK prototype kit test
+        uses: ./.github/actions/prototype-kit-test
         
   publish-npm:
     name: Build package and publish to npm
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 20a7a2d2..0924cdc5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,19 +10,28 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/lint
-      
+      - name: Lint
+        uses: ./.github/actions/lint
+
   tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/tests
+      - name: Tests
+        uses: ./.github/actions/tests
+
+  test-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Tests
+        uses: ./.github/actions/test-build
 
   prototype-kit:
     runs-on: ubuntu-latest
     needs:
-      - lint
-      - tests
+      - test-build
     steps:
       - uses: actions/checkout@v3
-      - uses: ./.github/actions/prototype-kit-test
+      - name: GOV.UK prototype kit test
+        uses: ./.github/actions/prototype-kit-test