diff --git a/x-pack/plugins/fleet/common/types/models/epm.ts b/x-pack/plugins/fleet/common/types/models/epm.ts
index 68f5744089a19e..b31be52468ea42 100644
--- a/x-pack/plugins/fleet/common/types/models/epm.ts
+++ b/x-pack/plugins/fleet/common/types/models/epm.ts
@@ -36,7 +36,11 @@ export type EpmPackageInstallStatus = 'installed' | 'installing';
 export type DetailViewPanelName = 'overview' | 'policies' | 'settings' | 'custom';
 export type ServiceName = 'kibana' | 'elasticsearch';
 export type AgentAssetType = typeof agentAssetTypes;
-export type AssetType = KibanaAssetType | ElasticsearchAssetType | ValueOf<AgentAssetType> | 'rules';
+export type AssetType =
+ | KibanaAssetType
+ | ElasticsearchAssetType
+ | ValueOf<AgentAssetType>
+ | 'rules';
 
 /*
   Enum mapping of a saved object asset type to how it would appear in a package file path (snake cased)
diff --git a/x-pack/plugins/fleet/public/applications/fleet/sections/epm/constants.tsx b/x-pack/plugins/fleet/public/applications/fleet/sections/epm/constants.tsx
index 652b48237e6141..79264c4431c157 100644
--- a/x-pack/plugins/fleet/public/applications/fleet/sections/epm/constants.tsx
+++ b/x-pack/plugins/fleet/public/applications/fleet/sections/epm/constants.tsx
@@ -31,7 +31,7 @@ export const AssetTitleMap: Record<AssetType, string> = {
   map: 'Map',
   data_stream_ilm_policy: 'Data Stream ILM Policy',
   lens: 'Lens',
-  rules: 'Detection Rules'
+  rules: 'Detection Rules',
 };
 
 export const ServiceTitleMap: Record<ServiceName, string> = {
diff --git a/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/__mocks__/api.ts b/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/__mocks__/api.ts
index 4d01d51af4e492..3b4c3d12b255ef 100644
--- a/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/__mocks__/api.ts
+++ b/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/__mocks__/api.ts
@@ -40,6 +40,7 @@ export const getPrePackagedRulesStatus = async ({
     rules_installed: 12,
     rules_not_installed: 0,
     rules_not_updated: 0,
+    rules_package_version: null,
     timelines_installed: 0,
     timelines_not_installed: 0,
     timelines_not_updated: 0,
diff --git a/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/api.ts b/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/api.ts
index e06e86b9d28d08..fa92d0a3fed4f4 100644
--- a/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/api.ts
+++ b/x-pack/plugins/security_solution/public/detections/containers/detection_engine/rules/api.ts
@@ -251,10 +251,10 @@ export const duplicateRules = async ({ rules }: DuplicateRulesProps): Promise<Bu
  * @throws An error if response is not OK
  */
 export const createPrepackagedRules = async ({
-  pkgVersion,
+  pkgVersion = null,
   signal,
 }: {
-  pkgVersion: string | undefined | null;
+  pkgVersion?: string | null | undefined;
   signal: AbortSignal;
 }): Promise<{
   rules_installed: number;
diff --git a/x-pack/plugins/security_solution/server/lib/detection_engine/routes/__mocks__/index.ts b/x-pack/plugins/security_solution/server/lib/detection_engine/routes/__mocks__/index.ts
index 6733944bfd2792..82050d5ecd1782 100644
--- a/x-pack/plugins/security_solution/server/lib/detection_engine/routes/__mocks__/index.ts
+++ b/x-pack/plugins/security_solution/server/lib/detection_engine/routes/__mocks__/index.ts
@@ -27,6 +27,7 @@ export const createMockConfig = () => ({
     to: 'now',
   },
   packagerTaskInterval: '60s',
+  usePackageRegistryRules: false,
   validateArtifactDownloads: true,
 });
 
diff --git a/x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/add_prepackaged_rules_route.ts b/x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/add_prepackaged_rules_route.ts
index cd5c85ca274c64..ca75675e2c9ee2 100644
--- a/x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/add_prepackaged_rules_route.ts
+++ b/x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/add_prepackaged_rules_route.ts
@@ -80,7 +80,7 @@ export const addPrepackedRulesRoute = (
           frameworkRequest,
           config.maxTimelineImportExportSize,
           undefined,
-          request.body.rules_package_version
+          request.body?.rules_package_version || undefined
         );
         return response.ok({ body: validated ?? {} });
       } catch (err) {
diff --git a/x-pack/plugins/security_solution/server/lib/detection_engine/rules/get_prepackaged_rules.ts b/x-pack/plugins/security_solution/server/lib/detection_engine/rules/get_prepackaged_rules.ts
index 6b224bbb08459a..854da3b8f6385e 100644
--- a/x-pack/plugins/security_solution/server/lib/detection_engine/rules/get_prepackaged_rules.ts
+++ b/x-pack/plugins/security_solution/server/lib/detection_engine/rules/get_prepackaged_rules.ts
@@ -130,7 +130,7 @@ export const checkAndStageUpdate = async () => {
   }
 
   try {
-    const registryPackage = await fetchFindLatestPackage(DetectionRulesPackageName);
+    const registryPackage = await fetchFindLatestPackage(DETECTION_RULES_PACKAGE_NAME);
     if (!latestRulesPackageVersion || registryPackage.version !== latestRulesPackageVersion) {
       // automatically download and cache the latest in memory
       const downloaded = await getPackageRegistryRules(registryPackage.version);