diff --git a/x-pack/plugins/siem/server/lib/detection_engine/rule_actions/saved_object_mappings.ts b/x-pack/plugins/siem/server/lib/detection_engine/rule_actions/saved_object_mappings.ts
index e50f82bb482a7..a7556d975da40 100644
--- a/x-pack/plugins/siem/server/lib/detection_engine/rule_actions/saved_object_mappings.ts
+++ b/x-pack/plugins/siem/server/lib/detection_engine/rule_actions/saved_object_mappings.ts
@@ -8,7 +8,7 @@ import { SavedObjectsType } from '../../../../../../../src/core/server';
 
 export const ruleActionsSavedObjectType = 'siem-detection-engine-rule-actions';
 
-export const ruleActionsSavedObjectMappings = {
+export const ruleActionsSavedObjectMappings: SavedObjectsType['mappings'] = {
   properties: {
     alertThrottle: {
       type: 'keyword',
diff --git a/x-pack/plugins/siem/server/lib/detection_engine/rules/saved_object_mappings.ts b/x-pack/plugins/siem/server/lib/detection_engine/rules/saved_object_mappings.ts
index 2dcc90240ad40..c01bc2497d677 100644
--- a/x-pack/plugins/siem/server/lib/detection_engine/rules/saved_object_mappings.ts
+++ b/x-pack/plugins/siem/server/lib/detection_engine/rules/saved_object_mappings.ts
@@ -8,7 +8,7 @@ import { SavedObjectsType } from '../../../../../../../src/core/server';
 
 export const ruleStatusSavedObjectType = 'siem-detection-engine-rule-status';
 
-export const ruleStatusSavedObjectMappings = {
+export const ruleStatusSavedObjectMappings: SavedObjectsType['mappings'] = {
   properties: {
     alertId: {
       type: 'keyword',
diff --git a/x-pack/plugins/siem/server/lib/note/saved_object_mappings.ts b/x-pack/plugins/siem/server/lib/note/saved_object_mappings.ts
index 0f079571b868b..de0bb3468e524 100644
--- a/x-pack/plugins/siem/server/lib/note/saved_object_mappings.ts
+++ b/x-pack/plugins/siem/server/lib/note/saved_object_mappings.ts
@@ -8,7 +8,7 @@ import { SavedObjectsType } from '../../../../../../src/core/server';
 
 export const noteSavedObjectType = 'siem-ui-timeline-note';
 
-export const noteSavedObjectMappings = {
+export const noteSavedObjectMappings: SavedObjectsType['mappings'] = {
   properties: {
     timelineId: {
       type: 'keyword',
diff --git a/x-pack/plugins/siem/server/lib/pinned_event/saved_object_mappings.ts b/x-pack/plugins/siem/server/lib/pinned_event/saved_object_mappings.ts
index 1a4cd3fce575d..d352764930d7f 100644
--- a/x-pack/plugins/siem/server/lib/pinned_event/saved_object_mappings.ts
+++ b/x-pack/plugins/siem/server/lib/pinned_event/saved_object_mappings.ts
@@ -8,7 +8,7 @@ import { SavedObjectsType } from '../../../../../../src/core/server';
 
 export const pinnedEventSavedObjectType = 'siem-ui-timeline-pinned-event';
 
-export const pinnedEventSavedObjectMappings = {
+export const pinnedEventSavedObjectMappings: SavedObjectsType['mappings'] = {
   properties: {
     timelineId: {
       type: 'keyword',
diff --git a/x-pack/plugins/siem/server/lib/timeline/saved_object_mappings.ts b/x-pack/plugins/siem/server/lib/timeline/saved_object_mappings.ts
index 1cab24d0879ff..4d9ae19bfd6a2 100644
--- a/x-pack/plugins/siem/server/lib/timeline/saved_object_mappings.ts
+++ b/x-pack/plugins/siem/server/lib/timeline/saved_object_mappings.ts
@@ -8,7 +8,7 @@ import { SavedObjectsType } from '../../../../../../src/core/server';
 
 export const timelineSavedObjectType = 'siem-ui-timeline';
 
-export const timelineSavedObjectMappings = {
+export const timelineSavedObjectMappings: SavedObjectsType['mappings'] = {
   properties: {
     columns: {
       properties: {