diff --git a/djangoblog/settings.py b/djangoblog/settings.py
index a00c7c4..6df8a9c 100644
--- a/djangoblog/settings.py
+++ b/djangoblog/settings.py
@@ -189,6 +189,14 @@ CACHES = {
         'LOCATION': 'unique-snowflake',
     }
 }
+# 使用redis作为缓存
+if os.environ.get("DJANGO_REDIS_URL"):
+    CACHES = {
+        'default': {
+            'BACKEND': 'django.core.cache.backends.redis.RedisCache',
+            'LOCATION': f'redis://{os.environ.get("DJANGO_REDIS_URL")}',
+        }
+    }
 
 SITE_ID = 1
 BAIDU_NOTIFY_URL = os.environ.get('DJANGO_BAIDU_NOTIFY_URL') \
diff --git a/djangoblog/utils.py b/djangoblog/utils.py
index c98dd3d..a53491d 100644
--- a/djangoblog/utils.py
+++ b/djangoblog/utils.py
@@ -9,6 +9,7 @@ import string
 import uuid
 from hashlib import sha256
 
+import markdown
 import requests
 from django.contrib.sites.models import Site
 from django.core.cache import cache
@@ -33,7 +34,8 @@ def cache_decorator(expiration=3 * 60):
             try:
                 view = args[0]
                 key = view.get_cache_key()
-            except BaseException:
+            except BaseException as e:
+                logger.warning(e)
                 key = None
             if not key:
                 unique_str = repr((func, args, kwargs))
@@ -97,7 +99,6 @@ def get_current_site():
 class CommonMarkdown:
     @staticmethod
     def _convert_markdown(value):
-        import markdown
         md = markdown.Markdown(
             extensions=[
                 'extra',
diff --git a/docker-compose.yml b/docker-compose.yml
index 307c66b..b1e130b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -21,7 +21,7 @@ services:
     volumes:
       - ./bin/datas/mysql/:/var/lib/mysql
     depends_on:
-      - memcached
+      - redis
     container_name: db
 
   djangoblog:
@@ -38,10 +38,10 @@ services:
       - DJANGO_MYSQL_PASSWORD=DjAnGoBlOg!2!Q@W#E
       - DJANGO_MYSQL_HOST=db
       - DJANGO_MYSQL_PORT=3306
-      - DJANGO_MEMCACHED_LOCATION=memcached:11211
+      - DJANGO_REDIS_URL=redis:6379
     links:
       - db
-      - memcached
+      - redis
     depends_on:
       - db
     container_name: djangoblog
@@ -58,9 +58,9 @@ services:
       - djangoblog:djangoblog
     container_name: nginx
 
-  memcached:
+  redis:
     restart: always
-    image: memcached:latest
-    container_name: memcached
+    image: redis:latest
+    container_name: redis
     ports:
-      - "11211:11211"
+      - "6379:6379"