diff --git a/bitnami/grafana-alloy/CHANGELOG.md b/bitnami/grafana-alloy/CHANGELOG.md
index 6a5573dcaa..044e4a3fa6 100644
--- a/bitnami/grafana-alloy/CHANGELOG.md
+++ b/bitnami/grafana-alloy/CHANGELOG.md
@@ -1,8 +1,12 @@
 # Changelog
 
-## 0.1.3 (2025-06-10)
+## 0.2.0 (2025-06-11)
 
-* [bitnami/grafana-alloy] :zap: :arrow_up: Update dependency references ([#34309](https://github.com/bitnami/charts/pull/34309))
+* [bitnami/grafana-alloy] Replace configmap with secret for configuration ([#34346](https://github.com/bitnami/charts/pull/34346))
+
+## <small>0.1.3 (2025-06-10)</small>
+
+* [bitnami/grafana-alloy] :zap: :arrow_up: Update dependency references (#34309) ([a21b221](https://github.com/bitnami/charts/commit/a21b22148fbf5faef8b50ad83a658cf70dc1134d)), closes [#34309](https://github.com/bitnami/charts/issues/34309)
 
 ## <small>0.1.2 (2025-06-10)</small>
 
diff --git a/bitnami/grafana-alloy/Chart.yaml b/bitnami/grafana-alloy/Chart.yaml
index e250ed3333..3884f773d7 100644
--- a/bitnami/grafana-alloy/Chart.yaml
+++ b/bitnami/grafana-alloy/Chart.yaml
@@ -36,4 +36,4 @@ maintainers:
 name: grafana-alloy
 sources:
 - https://github.com/bitnami/charts/tree/main/bitnami/grafana-alloy
-version: 0.1.3
+version: 0.2.0
diff --git a/bitnami/grafana-alloy/README.md b/bitnami/grafana-alloy/README.md
index 6611175890..4e03c9e8b0 100644
--- a/bitnami/grafana-alloy/README.md
+++ b/bitnami/grafana-alloy/README.md
@@ -224,8 +224,8 @@ Install the [Bitnami Kube Prometheus helm chart](https://github.com/bitnami/char
 | `alloy.image.pullSecrets`                                 | Grafana Alloy image pull secrets                                                                                                                                                                                                     | `[]`                            |
 | `alloy.containerPorts.http`                               | Grafana Alloy HTTP container port                                                                                                                                                                                                    | `8080`                          |
 | `alloy.extraContainerPorts`                               | Optionally specify extra list of additional ports for Grafana Alloy containers                                                                                                                                                       | `[]`                            |
-| `alloy.existingConfigmap`                                 | The name of an existing ConfigMap with your custom configuration for Grafana Alloy                                                                                                                                                   | `""`                            |
-| `alloy.configuration`                                     | Specify content for Grafan Alloy config file. Omitted if alloy.existingConfigmap is provided.                                                                                                                                        | `""`                            |
+| `alloy.existingSecret`                                    | The name of an existing Secret with your custom configuration for Grafana Alloy                                                                                                                                                      | `""`                            |
+| `alloy.configuration`                                     | Specify content for Grafana Alloy config file. Omitted if alloy.existingSecret is provided.                                                                                                                                          | `""`                            |
 | `alloy.extraConfig`                                       | Append extra configuration to the default config file                                                                                                                                                                                | `""`                            |
 | `alloy.clustering.enabled`                                | Deploy Grafana Alloy in a cluster to allow for load distribution.                                                                                                                                                                    | `false`                         |
 | `alloy.clustering.name`                                   | Name for the Grafana Alloy cluster. Used for differentiating between clusters.                                                                                                                                                       | `""`                            |
diff --git a/bitnami/grafana-alloy/templates/_helpers.tpl b/bitnami/grafana-alloy/templates/_helpers.tpl
index f08e57212e..94a90fe5b4 100644
--- a/bitnami/grafana-alloy/templates/_helpers.tpl
+++ b/bitnami/grafana-alloy/templates/_helpers.tpl
@@ -36,11 +36,11 @@ Create the name of the service account to use
 {{- end -}}
 
 {{/*
-Name of the Grafana Alloy ConfigMap
+Name of the Grafana Alloy Secret
 */}}
-{{- define "grafana-alloy.configmapName" -}}
-{{- if .Values.alloy.existingConfigmap -}}
-    {{- include "common.tplvalues.render" (dict "value" .Values.alloy.existingConfigmap "context" $) -}}
+{{- define "grafana-alloy.secretName" -}}
+{{- if .Values.alloy.existingSecret -}}
+    {{- include "common.tplvalues.render" (dict "value" .Values.alloy.existingSecret "context" $) -}}
 {{- else -}}
     {{- include "common.names.fullname" . -}}
 {{- end -}}
diff --git a/bitnami/grafana-alloy/templates/application.yaml b/bitnami/grafana-alloy/templates/application.yaml
index aecf037457..4b7d5c8ce7 100644
--- a/bitnami/grafana-alloy/templates/application.yaml
+++ b/bitnami/grafana-alloy/templates/application.yaml
@@ -51,7 +51,7 @@ spec:
   template:
     metadata:
       annotations:
-        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+        checksum/secret: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
       {{- if .Values.podAnnotations }}
       {{- include "common.tplvalues.render" (dict "value" .Values.podAnnotations "context" $) | nindent 8 }}
       {{- end }}
@@ -330,8 +330,8 @@ spec:
         {{- end }}
       volumes:
         - name: config
-          configMap:
-            name: {{ include "grafana-alloy.configmapName" . }}
+          secret:
+            secretName: {{ include "grafana-alloy.secretName" . }}
         {{- if .Values.alloy.mounts.varlog }}
         - name: varlog
           hostPath:
diff --git a/bitnami/grafana-alloy/templates/configmap.yaml b/bitnami/grafana-alloy/templates/secret.yaml
similarity index 95%
rename from bitnami/grafana-alloy/templates/configmap.yaml
rename to bitnami/grafana-alloy/templates/secret.yaml
index bb16e2c4b6..1b83ebfb49 100644
--- a/bitnami/grafana-alloy/templates/configmap.yaml
+++ b/bitnami/grafana-alloy/templates/secret.yaml
@@ -3,9 +3,9 @@ Copyright Broadcom, Inc. All Rights Reserved.
 SPDX-License-Identifier: APACHE-2.0
 */}}
 
-{{- if not .Values.alloy.existingConfigMap }}
+{{- if not .Values.alloy.existingSecret }}
 apiVersion: v1
-kind: ConfigMap
+kind: Secret
 metadata:
   name: {{ template "common.names.fullname" . }}
   namespace: {{ include "common.names.namespace" . | quote }}
@@ -15,7 +15,7 @@ metadata:
   {{- if .Values.commonAnnotations }}
   annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
   {{- end }}
-data:
+stringData:
   config.alloy: |
     {{- if .Values.alloy.configuration }}
     {{- include "common.tplvalues.render" (dict "value" .Values.alloy.configuration "context" .) | nindent 4 }}
diff --git a/bitnami/grafana-alloy/values.yaml b/bitnami/grafana-alloy/values.yaml
index a0abab01cf..59b451c78a 100644
--- a/bitnami/grafana-alloy/values.yaml
+++ b/bitnami/grafana-alloy/values.yaml
@@ -300,10 +300,10 @@ alloy:
   ##     containerPort: 9090
   ##
   extraContainerPorts: []
-  ## @param alloy.existingConfigmap The name of an existing ConfigMap with your custom configuration for Grafana Alloy
+  ## @param alloy.existingSecret The name of an existing Secret with your custom configuration for Grafana Alloy
   ##
-  existingConfigmap: ""
-  ## @param alloy.configuration Specify content for Grafan Alloy config file. Omitted if alloy.existingConfigmap is provided.
+  existingSecret: ""
+  ## @param alloy.configuration Specify content for Grafana Alloy config file. Omitted if alloy.existingSecret is provided.
   ## e.g:
   ## configuration: |-
   ##   ...