diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ce7d1570..a2eeee6d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@
 This file documents all notable changes to Ambassador Helm Chart. The release
 numbering uses [semantic versioning](http://semver.org).
 
+## v6.3.5
+
+- Upgrade Ambassador to version 1.4.3: [CHANGELOG}](https://github.com/datawire/ambassador/blob/master/CHANGELOG.md)
+
 ## v6.3.4
 
 - Minor bug fixes
diff --git a/Chart.yaml b/Chart.yaml
index b3ce0ac82..51cb46cef 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -1,9 +1,9 @@
 apiVersion: v1
-appVersion: 1.4.2
-ossVersion: 1.4.2
+appVersion: 1.4.3
+ossVersion: 1.4.3
 description: A Helm chart for Datawire Ambassador
 name: ambassador
-version: 6.3.4
+version: 6.3.5
 icon: https://www.getambassador.io/images/logo.png
 home: https://www.getambassador.io/
 sources:
diff --git a/README.md b/README.md
index 4853ecdd2..4166b65a7 100755
--- a/README.md
+++ b/README.md
@@ -96,7 +96,7 @@ The following tables lists the configurable parameters of the Ambassador chart a
 | `env`                              | Any additional environment variables for ambassador pods                        | `{}`                              |
 | `image.pullPolicy`                 | Ambassador image pull policy                                                    | `IfNotPresent`                    |
 | `image.repository`                 | Ambassador image                                                                | `quay.io/datawire/aes`            |
-| `image.tag`                        | Ambassador image tag                                                            | `1.4.2`                           |
+| `image.tag`                        | Ambassador image tag                                                            | `1.4.3`                           |
 | `imagePullSecrets`                 | Image pull secrets                                                              | `[]`                              |
 | `namespace.name`                   | Set the `AMBASSADOR_NAMESPACE` environment variable                             | `metadata.namespace`              |
 | `scope.singleNamespace`            | Set the `AMBASSADOR_SINGLE_NAMESPACE` environment variable and create namespaced RBAC if `rbac.enabled: true` | `false`|
diff --git a/values.yaml b/values.yaml
index 1b86c36c7..0d436da01 100644
--- a/values.yaml
+++ b/values.yaml
@@ -60,7 +60,7 @@ securityContext:
 
 image:
   repository: quay.io/datawire/aes
-  tag: 1.4.2
+  tag: 1.4.3
   pullPolicy: IfNotPresent
 
 dnsPolicy: "ClusterFirst"