diff --git a/config.example.yml b/config.example.yml
index 3bd5fc884..ad937e165 100644
--- a/config.example.yml
+++ b/config.example.yml
@@ -1,7 +1,7 @@
 # -------------------------------- dependencies ---------------------------------
 dependencies:
   postgres: # required
-    url: postgresql+asyncpg://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-changeme}@${POSTGRES_HOST:-localhost}:${POSTGRES_PORT:-5432}/postgres
+    url: postgresql+asyncpg://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-changeme}@${POSTGRES_HOST:-postgres}:${POSTGRES_PORT:-5432}/postgres
     echo: False
     pool_size: 5
     connect_args:
@@ -10,7 +10,7 @@ dependencies:
       command_timeout: 60
 
   redis: # required
-    url: redis://:${REDIS_PASSWORD:-changeme}@${REDIS_HOST:-localhost}:${REDIS_PORT:-6379}
+    url: redis://:${REDIS_PASSWORD:-changeme}@${REDIS_HOST:-redis}:${REDIS_PORT:-6379}
     max_connections: 200
     socket_connect_timeout: 5
     retry_on_timeout: True
diff --git a/docs/src/assets/icons/elasticsearch.svg b/docs/src/assets/icons/elasticsearch.svg
deleted file mode 100644
index d5d30d0ba..000000000
--- a/docs/src/assets/icons/elasticsearch.svg
+++ /dev/null
@@ -1,5 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128">
-    <path fill="#343741" d="M4 64c0 5.535.777 10.879 2.098 16H84c8.836 0 16-7.164 16-16s-7.164-16-16-16H6.098A63.738 63.738 0 0 0 4 64"/>
-    <path fill="#fec514" d="M111.695 30.648A61.485 61.485 0 0 0 117.922 24C106.188 9.379 88.199 0 68 0 42.715 0 20.957 14.71 10.574 36H98.04a20.123 20.123 0 0 0 13.652-5.352"/>
-    <path fill="#00bfb3" d="M98.04 92H10.577C20.961 113.29 42.715 128 68 128c20.2 0 38.188-9.383 49.922-24a61.1 61.1 0 0 0-6.227-6.648A20.133 20.133 0 0 0 98.04 92"/>
-</svg>