diff --git a/x-pack/plugins/security_solution/server/index.ts b/x-pack/plugins/security_solution/server/index.ts
index 8a77137c20c115..06b35213b4713a 100644
--- a/x-pack/plugins/security_solution/server/index.ts
+++ b/x-pack/plugins/security_solution/server/index.ts
@@ -4,15 +4,41 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { PluginInitializerContext } from '../../../../src/core/server';
+import { PluginInitializerContext, PluginConfigDescriptor } from '../../../../src/core/server';
 import { Plugin, PluginSetup, PluginStart } from './plugin';
 import { configSchema, ConfigType } from './config';
+import { SIGNALS_INDEX_KEY } from '../common/constants';
 
 export const plugin = (context: PluginInitializerContext) => {
   return new Plugin(context);
 };
 
-export const config = { schema: configSchema };
+export const config: PluginConfigDescriptor<ConfigType> = {
+  schema: configSchema,
+  deprecations: ({ renameFromRoot }) => [
+    renameFromRoot('xpack.siem.enabled', 'xpack.securitySolution.enabled'),
+    renameFromRoot(
+      'xpack.siem.maxRuleImportExportSize',
+      'xpack.securitySolution.maxRuleImportExportSize'
+    ),
+    renameFromRoot(
+      'xpack.siem.maxRuleImportPayloadBytes',
+      'xpack.securitySolution.maxRuleImportPayloadBytes'
+    ),
+    renameFromRoot(
+      'xpack.siem.maxTimelineImportExportSize',
+      'xpack.securitySolution.maxTimelineImportExportSize'
+    ),
+    renameFromRoot(
+      'xpack.siem.maxTimelineImportPayloadBytes',
+      'xpack.securitySolution.maxTimelineImportPayloadBytes'
+    ),
+    renameFromRoot(
+      `xpack.siem.${SIGNALS_INDEX_KEY}`,
+      `xpack.securitySolution.${SIGNALS_INDEX_KEY}`
+    ),
+  ],
+};
 
 export { ConfigType, Plugin, PluginSetup, PluginStart };