diff --git a/frontend/src/network/index.ts b/frontend/src/network/index.ts
index 03f3de2..8d60770 100644
--- a/frontend/src/network/index.ts
+++ b/frontend/src/network/index.ts
@@ -104,7 +104,7 @@ const contactValidator = strictObject({
 
 const eventValidator = strictObject({
     ID: pipe(string(), uuid()),
-    CreatedAt: pipe(string()),
+    CreatedAt: nullable(pipe(string())),
     Name: string(),
     StartDateTime: nullable(pipe(string())),
     EndDateTime: nullable(pipe(string())),