diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3ae9a6f4..def3ee7c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,7 @@ jobs:
     strategy:
       matrix:
         os:
+          - ubuntu-slim
           - ubuntu-22.04
           - ubuntu-22.04-arm
           - ubuntu-24.04
@@ -67,6 +68,7 @@ jobs:
     strategy:
       matrix:
         os:
+          - ubuntu-slim
           - ubuntu-22.04
           - ubuntu-22.04-arm
           - ubuntu-24.04
@@ -122,7 +124,7 @@ jobs:
           EXPECTED_SSL: true
 
   zizmor:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     permissions:
       security-events: write