diff --git a/x-pack/plugins/rule_registry/common/assets/field_maps/technical_rule_field_map.ts b/x-pack/plugins/rule_registry/common/assets/field_maps/technical_rule_field_map.ts
index 3c8b96976792d..54a4b80a35bb4 100644
--- a/x-pack/plugins/rule_registry/common/assets/field_maps/technical_rule_field_map.ts
+++ b/x-pack/plugins/rule_registry/common/assets/field_maps/technical_rule_field_map.ts
@@ -115,7 +115,7 @@ export const technicalRuleFieldMap = {
     required: false,
   },
   [Fields.ALERT_RULE_FROM]: {
-    type: 'date',
+    type: 'keyword',
     array: false,
     required: false,
   },