diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3bc091e..5fd4d80 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,12 @@
 name: Test
-on: push
+on: 
+  push:
+  workflow_dispatch:
+    inputs:
+      branch:
+        required: false
+        type: string
+        default: master
 jobs:
   test:
     name: Test
@@ -22,4 +29,18 @@ jobs:
           key: v1/${{ runner.os }}/node-${{ matrix.node }}/${{ hashFiles('**/yarn.lock') }}
           restore-keys: v1/${{ runner.os }}/node-${{ matrix.node }}/
       - run: yarn
+      - name: Set up @percy/cli from git
+        if: ${{ github.event_name == 'workflow_dispatch' }}
+        run: |
+          cd /tmp
+          git clone --branch ${{ github.event.inputs.branch }} --depth 1 https://github.com/percy/cli
+          cd cli
+          PERCY_PACKAGES=`find packages -type d -depth 1 | sed -e 's/packages/@percy/g' | tr '\n' ' '`
+          git log -1
+          yarn
+          yarn build
+          yarn global:link
+          cd ${{ github.workspace }} 
+          yarn remove @percy/cli && yarn link `echo $PERCY_PACKAGES`
+          npx percy --version
       - run: yarn test:coverage