diff --git a/client/services/InsightsService.ts b/client/services/InsightsService.ts
index 6739a3b..c325fda 100644
--- a/client/services/InsightsService.ts
+++ b/client/services/InsightsService.ts
@@ -587,7 +587,7 @@ export class InsightsService {
       /**
        * The date and time when workflow was created.
        */
-      "workflow-created-at": any;
+      "workflow-created-at": string;
       /**
        * The ID of the workflow associated with the provided test counts
        */
diff --git a/swagger.json b/swagger.json
index 109801b..d928db2 100644
--- a/swagger.json
+++ b/swagger.json
@@ -2049,7 +2049,8 @@
                             "type": "integer"
                           },
                           "workflow-created-at": {
-                            "description": "The date and time when workflow was created."
+                            "description": "The date and time when workflow was created.",
+                            "type": "string"
                           },
                           "workflow-id": {
                             "description": "The ID of the workflow associated with the provided test counts"