diff --git a/charts/vald/README.md b/charts/vald/README.md
index 36eab280cae..08c294a304a 100644
--- a/charts/vald/README.md
+++ b/charts/vald/README.md
@@ -52,7 +52,7 @@ Run the following command to install the chart,
 | agent.affinity.podAffinity.requiredDuringSchedulingIgnoredDuringExecution                             | list   | `[]`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | pod affinity required scheduling terms                                                                                                                                                                                                                                                                                                                                                                                           |
 | agent.affinity.podAntiAffinity.preferredDuringSchedulingIgnoredDuringExecution                        | list   | `[{"podAffinityTerm":{"labelSelector":{"matchExpressions":[{"key":"app","operator":"In","values":["vald-agent"]}]},"topologyKey":"kubernetes.io/hostname"},"weight":100}]`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | pod anti-affinity preferred scheduling terms                                                                                                                                                                                                                                                                                                                                                                                     |
 | agent.affinity.podAntiAffinity.requiredDuringSchedulingIgnoredDuringExecution                         | list   | `[]`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | pod anti-affinity required scheduling terms                                                                                                                                                                                                                                                                                                                                                                                      |
-| agent.algorithm                                                                                       | string | `"ngt"`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | agent algorithm type. it should be `ngt` or `faiss`.                                                                                                                                                                                                                                                                                                                                                                    |
+| agent.algorithm                                                                                       | string | `"ngt"`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | agent algorithm type. it should be `ngt` or `faiss`.                                                                                                                                                                                                                                                                                                                                                                             |
 | agent.annotations                                                                                     | object | `{}`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | deployment annotations                                                                                                                                                                                                                                                                                                                                                                                                           |
 | agent.enabled                                                                                         | bool   | `true`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | agent enabled                                                                                                                                                                                                                                                                                                                                                                                                                    |
 | agent.env                                                                                             | list   | `[{"name":"MY_NODE_NAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}},{"name":"MY_POD_NAME","valueFrom":{"fieldRef":{"fieldPath":"metadata.name"}}},{"name":"MY_POD_NAMESPACE","valueFrom":{"fieldRef":{"fieldPath":"metadata.namespace"}}}]`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | environment variables                                                                                                                                                                                                                                                                                                                                                                                                            |