diff --git a/report/schemas.api.md b/report/schemas.api.md
index e9648eac..967cd3f7 100644
--- a/report/schemas.api.md
+++ b/report/schemas.api.md
@@ -997,8 +997,8 @@ export namespace Link {
 export type LinkerAuthorization = {
     name: string;
     desc: string;
-    startDate?: number;
-    endDate?: number;
+    startDate?: string;
+    endDate?: string;
     contactInfo: {
         name: string;
         [key: string]: string;
diff --git a/src/misc/linker-authorization.ts b/src/misc/linker-authorization.ts
index 712d1470..f86005c9 100644
--- a/src/misc/linker-authorization.ts
+++ b/src/misc/linker-authorization.ts
@@ -8,8 +8,8 @@ import { JSONSchema, ValidateFunction, generateLazyValidator } from '../validati
 export type LinkerAuthorization = {
   name: string
   desc: string
-  startDate?: number
-  endDate?: number
+  startDate?: string
+  endDate?: string
   contactInfo: {
     name: string
     [key: string]: string
@@ -24,8 +24,8 @@ export namespace LinkerAuthorization {
     properties: {
       name: { type: 'string' },
       desc: { type: 'string' },
-      startDate: { type: 'number', nullable: true },
-      endDate: { type: 'number', nullable: true },
+      startDate: { type: 'string', nullable: true },
+      endDate: { type: 'string', nullable: true },
       contactInfo: {
         type: 'object',
         properties: {