Updated hash method.

lib/crypto.js

@@ -14,11 +14,11 @@ export function hash(...args) {
 }
 
 export function secret() {
-  return hash(process.env.HASH_SALT);
+  return hash(process.env.DATABASE_URL, process.env.HASH_SALT);
 }
 
 export function salt() {
-  return v5([secret(), ROTATING_SALT].join(''), v5.DNS);
+  return v5(hash(secret(), ROTATING_SALT), v5.DNS);
 }
 
 export function uuid(...args) {