diff --git a/charts/argo-cd/Chart.yaml b/charts/argo-cd/Chart.yaml
index 1bfed795c..5f4379441 100644
--- a/charts/argo-cd/Chart.yaml
+++ b/charts/argo-cd/Chart.yaml
@@ -3,7 +3,7 @@ appVersion: v2.8.4
 kubeVersion: ">=1.23.0-0"
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 5.46.7
+version: 5.46.8
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 sources:
@@ -26,5 +26,5 @@ annotations:
     fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
-    - kind: security
-      description: updated redis dependency to 7.0.13-alpine to fix CVE-2022-48174
+    - kind: fixed
+      description: Sync redis / redis-ha readOnlyRootFilesystem=true option from upstream. This was part of Argo CD 2.8.0.
diff --git a/charts/argo-cd/README.md b/charts/argo-cd/README.md
index 166619712..b2101038f 100644
--- a/charts/argo-cd/README.md
+++ b/charts/argo-cd/README.md
@@ -1001,12 +1001,14 @@ The main options are listed here:
 |-----|------|---------|-------------|
 | redis-ha.additionalAffinities | object | `{}` | Additional affinities to add to the Redis server pods. |
 | redis-ha.affinity | string | `""` | Assign custom [affinity] rules to the Redis pods. |
+| redis-ha.containerSecurityContext | object | See [values.yaml] | Redis HA statefulset container-level security context |
 | redis-ha.enabled | bool | `false` | Enables the Redis HA subchart and disables the custom Redis single node deployment |
 | redis-ha.exporter.enabled | bool | `false` | Enable Prometheus redis-exporter sidecar |
 | redis-ha.exporter.image | string | `"public.ecr.aws/bitnami/redis-exporter"` | Repository to use for the redis-exporter |
 | redis-ha.exporter.tag | string | `"1.53.0"` | Tag to use for the redis-exporter |
 | redis-ha.haproxy.additionalAffinities | object | `{}` | Additional affinities to add to the haproxy pods. |
 | redis-ha.haproxy.affinity | string | `""` | Assign custom [affinity] rules to the haproxy pods. |
+| redis-ha.haproxy.containerSecurityContext | object | See [values.yaml] | HAProxy container-level security context |
 | redis-ha.haproxy.enabled | bool | `true` | Enabled HAProxy LoadBalancing/Proxy |
 | redis-ha.haproxy.hardAntiAffinity | bool | `true` | Whether the haproxy pods should be forced to run on separate nodes. |
 | redis-ha.haproxy.metrics.enabled | bool | `true` | HAProxy enable prometheus metric scraping |
diff --git a/charts/argo-cd/values.yaml b/charts/argo-cd/values.yaml
index fed4e97c4..b029dfaab 100644
--- a/charts/argo-cd/values.yaml
+++ b/charts/argo-cd/values.yaml
@@ -1279,6 +1279,7 @@ redis:
   # -- Redis container-level security context
   # @default -- See [values.yaml]
   containerSecurityContext:
+    readOnlyRootFilesystem: true
     allowPrivilegeEscalation: false
     capabilities:
       drop:
@@ -1416,8 +1417,13 @@ redis-ha:
     additionalAffinities: {}
     # -- Assign custom [affinity] rules to the haproxy pods.
     affinity: |
+
     # -- [Tolerations] for use with node taints for haproxy pods.
     tolerations: []
+    # -- HAProxy container-level security context
+    # @default -- See [values.yaml]
+    containerSecurityContext:
+      readOnlyRootFilesystem: true
 
   # -- Whether the Redis server pods should be forced to run on separate nodes.
   hardAntiAffinity: true
@@ -1445,6 +1451,10 @@ redis-ha:
     # -- Enforcement policy, hard or soft
     # @default -- `""` (defaults to `ScheduleAnyway`)
     whenUnsatisfiable: ""
+  # -- Redis HA statefulset container-level security context
+  # @default -- See [values.yaml]
+  containerSecurityContext:
+    readOnlyRootFilesystem: true
 
 # External Redis parameters
 externalRedis: