diff --git a/k8s/inventory/ci_workers.yaml b/k8s/inventory/ci_workers.yaml
index 16852d1..35c7859 100644
--- a/k8s/inventory/ci_workers.yaml
+++ b/k8s/inventory/ci_workers.yaml
@@ -1,7 +1,7 @@
 all:
   vars:
     ansible_user: root
-    concourse_version: "7.9.0"
+    concourse_version: "7.9.1"
   children:
     concourse_workers:
       hosts:
diff --git a/k8s/roles/concourse/templates/values.concourse.yml.j2 b/k8s/roles/concourse/templates/values.concourse.yml.j2
index 105d008..c0113eb 100644
--- a/k8s/roles/concourse/templates/values.concourse.yml.j2
+++ b/k8s/roles/concourse/templates/values.concourse.yml.j2
@@ -20,6 +20,10 @@ worker:
 concourse:
   web:
     externalUrl: https://concourse.icb4dc0.de
+    containerPlacementStrategies:
+      - limit-active-tasks
+      - fewest-build-containers
+    limitActiveTasks: 2
     auth:
       mainTeam:
         oidc:
@@ -40,8 +44,11 @@ concourse:
       teams:
         - main
         - inetmock
+    gc:
+      failedGracePeriod: 30s
   worker:
     runtime: containerd
+
 persistence:
   enabled: true
   worker: