diff --git a/esphome/components/mdns/__init__.py b/esphome/components/mdns/__init__.py
index 6b4578ac23..4776bef22f 100644
--- a/esphome/components/mdns/__init__.py
+++ b/esphome/components/mdns/__init__.py
@@ -13,6 +13,7 @@ from esphome.const import (
 )
 from esphome.core import CORE, Lambda, coroutine_with_priority
 from esphome.coroutine import CoroPriority
+from esphome.types import ConfigType
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network"]
@@ -47,7 +48,7 @@ SERVICE_SCHEMA = cv.Schema(
 )
 
 
-def _consume_mdns_sockets(config):
+def _consume_mdns_sockets(config: ConfigType) -> ConfigType:
     """Register socket needs for mDNS component."""
     if config.get(CONF_DISABLED):
         return config
diff --git a/esphome/components/mqtt/__init__.py b/esphome/components/mqtt/__init__.py
index 3866e09a24..641c70a367 100644
--- a/esphome/components/mqtt/__init__.py
+++ b/esphome/components/mqtt/__init__.py
@@ -58,6 +58,7 @@ from esphome.const import (
     PlatformFramework,
 )
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
+from esphome.types import ConfigType
 
 DEPENDENCIES = ["network"]
 
@@ -210,7 +211,7 @@ def validate_fingerprint(value):
     return value
 
 
-def _consume_mqtt_sockets(config):
+def _consume_mqtt_sockets(config: ConfigType) -> ConfigType:
     """Register socket needs for MQTT component."""
     from esphome.components import socket