diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c261b97..0950026 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,19 @@ on:
 
 jobs:
 
+  vendor:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16.5
+    - name: Vendor
+      run: |
+        make vendor
+        git diff --exit-code
+
   build:
     runs-on: ubuntu-latest
     steps:
@@ -116,6 +129,7 @@ jobs:
   push:
     if: github.event_name != 'pull_request'
     needs:
+    - vendor
     - build
     - linux
     - darwin