diff --git a/backend/src/services/app-connection/flyio/flyio-connection-schemas.ts b/backend/src/services/app-connection/flyio/flyio-connection-schemas.ts
index 2b494b1d6..6aa0fccc1 100644
--- a/backend/src/services/app-connection/flyio/flyio-connection-schemas.ts
+++ b/backend/src/services/app-connection/flyio/flyio-connection-schemas.ts
@@ -11,7 +11,12 @@ import {
 import { FlyioConnectionMethod } from "./flyio-connection-enums";
 
 export const FlyioConnectionAccessTokenCredentialsSchema = z.object({
-  accessToken: z.string().trim().min(1, "Access Token required").describe(AppConnections.CREDENTIALS.FLYIO.accessToken)
+  accessToken: z
+    .string()
+    .trim()
+    .min(1, "Access Token required")
+    .max(1000)
+    .describe(AppConnections.CREDENTIALS.FLYIO.accessToken)
 });
 
 const BaseFlyioConnectionSchema = BaseAppConnectionSchema.extend({ app: z.literal(AppConnection.Flyio) });
diff --git a/backend/src/services/secret-sync/flyio/flyio-sync-schemas.ts b/backend/src/services/secret-sync/flyio/flyio-sync-schemas.ts
index e65af2db0..b353f94b4 100644
--- a/backend/src/services/secret-sync/flyio/flyio-sync-schemas.ts
+++ b/backend/src/services/secret-sync/flyio/flyio-sync-schemas.ts
@@ -11,7 +11,7 @@ import {
 import { TSyncOptionsConfig } from "@app/services/secret-sync/secret-sync-types";
 
 const FlyioSyncDestinationConfigSchema = z.object({
-  appId: z.string().trim().min(1, "App required").describe(SecretSyncs.DESTINATION_CONFIG.FLYIO.appId)
+  appId: z.string().trim().min(1, "App required").max(255).describe(SecretSyncs.DESTINATION_CONFIG.FLYIO.appId)
 });
 
 const FlyioSyncOptionsConfig: TSyncOptionsConfig = { canImportSecrets: false };