diff --git a/README.md b/README.md
index c028084..9c00429 100644
--- a/README.md
+++ b/README.md
@@ -149,7 +149,7 @@ only_global_ips = true
 
 [key_server_config]
 version = 1
-attestation_style = 1
+attestation_style = 1 #This corresponds to using an image, epid=1, dcap=2
 seal_policy = "MRSIGNER"
 exe_policy = { Multiply = { executors = 8 } }
 round_time_limit = 60
diff --git a/docker-compose.yml b/docker-compose.yml
index 9573cc2..c7bf4ef 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,8 @@
 version: "3"
 services:
   bnk-occlum-keyring:
-    image: boolnetwork/bnk-occlum-keyring-epid:v0.5.2
+    image: boolnetwork/bnk-occlum-keyring-epid:v0.5.2  #Different images result in different values for the attestation_style parameter in the configuration file
+    # image: boolnetwork/bnk-occlum-keyring-dcap:pre-release
     restart: always
     network_mode: "host"
     # ports: