diff --git a/charts/sourcegraph-executor/dind/README.md b/charts/sourcegraph-executor/dind/README.md
index 087e9184..84a952d0 100644
--- a/charts/sourcegraph-executor/dind/README.md
+++ b/charts/sourcegraph-executor/dind/README.md
@@ -88,6 +88,7 @@ In addition to the documented values, the `executor` and `private-docker-registr
 | privateDockerRegistry.image.registry | string | `"index.docker.io"` |  |
 | privateDockerRegistry.image.repository | string | `"registry"` |  |
 | privateDockerRegistry.image.tag | int | `3` |  |
+| privateDockerRegistry.registryProxyRemoteUrl | string | `"https://registry-1.docker.io"` | Remote registry URL used by the private registry pull-through cache. |
 | privateDockerRegistry.storageSize | string | `"10Gi"` |  |
 | queues | list | `[]` | Optional list of queues to deploy as standalone Deployments. When set, the single executor Deployment is not rendered. Each entry supports:   name        (required) — used as the deployment name suffix (executor-<name>)   queueName   — sets EXECUTOR_QUEUE_NAME; defaults to name if omitted   queueNames  — sets EXECUTOR_QUEUE_NAMES (comma-joined); takes precedence over queueName when set   replicaCount, resources, env (merged with executor.env, queue overrides) |
 | sourcegraph.affinity | object | `{}` | Affinity, learn more from the [Kubernetes documentation](https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#affinity-and-anti-affinity) |
diff --git a/charts/sourcegraph-executor/dind/templates/private-docker-registry/private-docker-registry.Statefulset.yaml b/charts/sourcegraph-executor/dind/templates/private-docker-registry/private-docker-registry.Statefulset.yaml
index fff6d337..800bd6aa 100644
--- a/charts/sourcegraph-executor/dind/templates/private-docker-registry/private-docker-registry.Statefulset.yaml
+++ b/charts/sourcegraph-executor/dind/templates/private-docker-registry/private-docker-registry.Statefulset.yaml
@@ -46,7 +46,7 @@ spec:
           imagePullPolicy: {{ .Values.sourcegraph.image.pullPolicy }}
           env:
             - name: REGISTRY_PROXY_REMOTEURL
-              value: http://registry-1.docker.io
+              value: {{ .Values.privateDockerRegistry.registryProxyRemoteUrl | quote }}
           ports:
             - name: http
               containerPort: 5000
diff --git a/charts/sourcegraph-executor/dind/values.yaml b/charts/sourcegraph-executor/dind/values.yaml
index e27885cf..3eae65be 100644
--- a/charts/sourcegraph-executor/dind/values.yaml
+++ b/charts/sourcegraph-executor/dind/values.yaml
@@ -203,6 +203,8 @@ privateDockerRegistry:
   # -- Whether to deploy the private registry. Only one registry is needed when deploying multiple executors.
   # More information: https://docs.sourcegraph.com/admin/executors/deploy_executors#using-private-registries
   enabled: true
+  # -- Remote registry URL used by the private registry pull-through cache.
+  registryProxyRemoteUrl: https://registry-1.docker.io
   image:
     registry: index.docker.io
     repository: registry