diff --git a/charts/argo/Chart.yaml b/charts/argo/Chart.yaml
index 2fbb2cfb..7ac88c50 100644
--- a/charts/argo/Chart.yaml
+++ b/charts/argo/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: v2.11.7
 description: A Helm chart for Argo Workflows
 name: argo
-version: 0.13.5
+version: 0.13.6
 icon: https://raw.githubusercontent.com/argoproj/argo/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm
 maintainers:
diff --git a/charts/argo/templates/workflow-controller-config-map.yaml b/charts/argo/templates/workflow-controller-config-map.yaml
index 2f2faf93..94b0bad6 100644
--- a/charts/argo/templates/workflow-controller-config-map.yaml
+++ b/charts/argo/templates/workflow-controller-config-map.yaml
@@ -16,6 +16,9 @@ data:
     {{- end }}
     {{- end }}
     containerRuntimeExecutor: {{ .Values.controller.containerRuntimeExecutor }}
+    {{- if .Values.controller.parallelism }}
+    parallelism: {{ .Values.controller.parallelism }}
+    {{- end }}
     {{- if or .Values.executor.resources .Values.executor.env .Values.executor.securityContext}}
     executor:
       {{- with .Values.executor.resources }}
diff --git a/charts/argo/values.yaml b/charts/argo/values.yaml
index 1a4c5f28..4fa4cd7a 100644
--- a/charts/argo/values.yaml
+++ b/charts/argo/values.yaml
@@ -36,6 +36,8 @@ controller:
   image:
     # Overrides .images.tag if defined.
     tag: ""
+  # parallelism dictates how many workflows can be running at the same time
+  parallelism:
   # podAnnotations is an optional map of annotations to be applied to the controller Pods
   podAnnotations: {}
   # Optional labels to add to the controller pods