diff --git a/packages/redis/src/mod.ts b/packages/redis/src/mod.ts
index 5774477c..2c7f4360 100644
--- a/packages/redis/src/mod.ts
+++ b/packages/redis/src/mod.ts
@@ -35,10 +35,11 @@ export class RedisAdapter<T> implements StorageAdapter<T> {
   }
 
   async write(key: string, value: T) {
-    await this.redis.set(key, JSON.stringify(value));
-    if (this.ttl) {
-      this.redis.expire(key, this.ttl);
-    }
+    const val = JSON.stringify(value)
+    const ttl = this.ttl
+    
+	  // ttl is undefined by default
+    await this.redis.set(key, val, "EX", ttl);
   }
 
   async delete(key: string) {
@@ -58,4 +59,4 @@ const dateParser = (key: string, value: any) => {
     return new Date(newValue);
   }
   return value;
-}
\ No newline at end of file
+}