diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d600b27..d9b8d71 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,10 +13,18 @@ jobs:
     strategy:
       matrix:
         os:
+          - name: freebsd
+            architecture: x86-64
+            version: '13.2'
+            host: ubuntu-latest
           - name: netbsd
             architecture: x86-64
             version: '9.3'
             host: ubuntu-latest
+          - name: openbsd
+            architecture: x86-64
+            version: '7.4'
+            host: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4