diff --git a/.github/workflows/ci-outpost.yml b/.github/workflows/ci-outpost.yml
index 8e05a5bcd..de5937290 100644
--- a/.github/workflows/ci-outpost.yml
+++ b/.github/workflows/ci-outpost.yml
@@ -39,6 +39,10 @@ jobs:
         type:
           - proxy
           - ldap
+        arch:
+          - 'linux/amd64'
+          - 'linux/arm64'
+          - 'linux/arm/v7'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -68,3 +72,4 @@ jobs:
           file: ${{ matrix.type }}.Dockerfile
           build-args: |
             GIT_BUILD_HASH=${{ steps.ev.outputs.sha }}
+          platforms: ${{ matrix.terraform }}