diff --git a/theodolite-benchmarks/definitions/uc1-beam-flink/resources/jobmanager-deployment.yaml b/theodolite-benchmarks/definitions/uc1-beam-flink/resources/jobmanager-deployment.yaml
index a6f57b5134cfc6443ed196765c5b433dd854c67e..ef07c2996df53dc25e46563e0b6dea97b6abab45 100644
--- a/theodolite-benchmarks/definitions/uc1-beam-flink/resources/jobmanager-deployment.yaml
+++ b/theodolite-benchmarks/definitions/uc1-beam-flink/resources/jobmanager-deployment.yaml
@@ -46,7 +46,7 @@ spec:
                 queryable-state.proxy.ports: 6125
                 jobmanager.memory.process.size: 4Gb
                 taskmanager.memory.process.size: 4Gb
-                parallelism.default: 2 #TODO
+                parallelism.default: 1 #TODO
           resources:
             limits:
               memory: 4Gi