diff --git a/ops/k8s-apps/base/dagster/dagster.yaml b/ops/k8s-apps/base/dagster/dagster.yaml
index d0ddb178..a170b7b0 100644
--- a/ops/k8s-apps/base/dagster/dagster.yaml
+++ b/ops/k8s-apps/base/dagster/dagster.yaml
@@ -59,7 +59,7 @@ spec:
               containerConfig:
                 resources:
                   limits:
-                    cpu: 500m 
+                    cpu: 500m
                     memory: 1024Mi
                   requests:
                     cpu: 500m
@@ -96,6 +96,9 @@ spec:
           config:
             queuedRunCoordinator:
               maxConcurrentRuns: 30
+              blockOpConcurrencyLimitedRuns:
+                enabled: true
+                opConcurrencySlotBuffer: 1
       dagster-user-deployments:
         deployments:
           - name: "oso-dagster"