diff --git a/apisix-master-0.rockspec b/apisix-master-0.rockspec
index 439aa9cb046d..90327d61b262 100644
--- a/apisix-master-0.rockspec
+++ b/apisix-master-0.rockspec
@@ -51,7 +51,7 @@ dependencies = {
     "lua-resty-openidc = 1.7.6-3",
     "luafilesystem = 1.7.0-2",
     "api7-lua-tinyyaml = 0.4.4",
-    "nginx-lua-prometheus-api7 = 0.20230607-1",
+    "nginx-lua-prometheus-api7 = 0.20240201-1",
     "jsonschema = 0.9.8",
     "lua-resty-ipmatcher = 0.6.1",
     "lua-resty-kafka = 0.22-0",
diff --git a/conf/config-default.yaml b/conf/config-default.yaml
index 67c0d54d5b68..589552dcb834 100755
--- a/conf/config-default.yaml
+++ b/conf/config-default.yaml
@@ -600,7 +600,9 @@ plugin_attr:          # Plugin attributes
     #   - 100
     #   - 200
     #   - 500
-    # expire: 86400                         # the expiration time after metrics become inactive, unit: second
+    # expire: 0                       # The expiration time after metrics become inactive, unit: second.
+                                      # 0 means the metrics will not expire
+                                      # We recommend using 600 If you need to set the expiration time
   server-info:                        # Plugin: server-info
     report_ttl: 60                    # Set the TTL in seconds for server info in etcd.
                                       # Maximum: 86400. Minimum: 3.