diff --git a/apps/system/logging/requirements.yaml b/apps/system/logging/requirements.yaml
index 2a95d3c..1c35747 100644
--- a/apps/system/logging/requirements.yaml
+++ b/apps/system/logging/requirements.yaml
@@ -2,3 +2,6 @@ dependencies:
 - name: graylog
   version: '1.3.9'
   repository: '@stable'
+- name: mongodb
+  version: '7.4.5'
+  repository: '@stable'
diff --git a/apps/system/logging/values.yaml b/apps/system/logging/values.yaml
index 82e142d..e45e830 100644
--- a/apps/system/logging/values.yaml
+++ b/apps/system/logging/values.yaml
@@ -3,6 +3,13 @@ tags:
   install-elasticsearch: false
   install-mongodb: false
 
+mongodb:
+  nameOverride: mongo
+  fullnameOverride: mongo
+  usePassword: false
+  persistence:
+    existingClaim: mongo
+
 graylog:
   nameOverride: graylog
   fullnameOverride: graylog
@@ -19,4 +26,7 @@ graylog:
       - hosts:
         - graylog.gorilych.ru
         secretName: graylog-tls
+    mongodb:
+      uri:
+        mongodb://mongo:27017