diff --git a/charts/gha-runner-scale-set-controller/values.yaml b/charts/gha-runner-scale-set-controller/values.yaml
index 510673c397..efd3995869 100644
--- a/charts/gha-runner-scale-set-controller/values.yaml
+++ b/charts/gha-runner-scale-set-controller/values.yaml
@@ -72,7 +72,7 @@ tolerations: []
 
 affinity: {}
 
-topologySpreadConstraints: {}
+topologySpreadConstraints: []
 
 # Mount volumes in the container.
 volumes: []