diff --git a/packages/remix-node/sessions/fileStorage.ts b/packages/remix-node/sessions/fileStorage.ts
index 0a06213238e..da38f5b16e5 100644
--- a/packages/remix-node/sessions/fileStorage.ts
+++ b/packages/remix-node/sessions/fileStorage.ts
@@ -42,7 +42,7 @@ export function createFileSessionStorage<Data = SessionData, FlashData = Data>({
       while (true) {
         // TODO: Once node v16 is available on AWS we should use the webcrypto
         // API's crypto.getRandomValues() function here instead.
-        let randomBytes = crypto.randomBytes(8);
+        let randomBytes = crypto.webcrypto.getRandomValues(new Uint8Array(8));
         // This storage manages an id space of 2^64 ids, which is far greater
         // than the maximum number of files allowed on an NTFS or ext4 volume
         // (2^32). However, the larger id space should help to avoid collisions