diff --git a/services/cache.py b/services/cache.py
index 624703e6..98e4198d 100644
--- a/services/cache.py
+++ b/services/cache.py
@@ -28,7 +28,7 @@ async def cache_topic(topic: dict):
 
 async def cache_author(author: dict):
     author_id = author.get("id")
-    user_id = author.get("user")
+    user_id = author.get("user", "").strip()
     payload = json.dumps(author, cls=CustomJSONEncoder)
     await redis.execute("SET", f"author:user:{user_id}", payload)
     await redis.execute("SET", f"author:id:{author_id}", payload)
@@ -76,7 +76,7 @@ async def get_cached_author(author_id: int, get_with_stat):
 
 
 async def get_cached_author_by_user_id(user_id: str, get_with_stat) -> dict:
-    author_str = await redis.execute("GET", f"author:user:{user_id}")
+    author_str = await redis.execute("GET", f"author:user:{user_id.strip()}")
     author_dict = None
     if not author_str:
         author_query = select(Author).filter(Author.user == user_id)
diff --git a/services/precache.py b/services/precache.py
index eef916a7..3e09c3ec 100644
--- a/services/precache.py
+++ b/services/precache.py
@@ -111,7 +111,7 @@ async def precache_data():
         for author in authors:
             profile = author.dict() if not isinstance(author, dict) else author
             author_id = profile.get("id")
-            user_id = profile.get("user")
+            user_id = profile.get("user","").strip()
             if author_id and user_id:
                 authors_by_id[author_id] = profile
                 author_payload = json.dumps(profile, cls=CustomJSONEncoder)