diff --git a/mcu-echo-1.yaml b/mcu-echo-1.yaml
index a791db1..684833b 100644
--- a/mcu-echo-1.yaml
+++ b/mcu-echo-1.yaml
@@ -19,6 +19,7 @@ esp32:
 
 packages:
   common: !include common/common.yaml
+  ipv6_only: !include common/ipv6_only.yaml
 
 external_components:
   # speaker media player: skip a failed playlist item (esphome#19862), drop once merged
diff --git a/mcu-echo.yaml b/mcu-echo.yaml
index c08f44d..b4d9fb5 100644
--- a/mcu-echo.yaml
+++ b/mcu-echo.yaml
@@ -20,6 +20,7 @@ esp32:
 
 packages:
   common: !include common/common.yaml
+  ipv6_only: !include common/ipv6_only.yaml
 
 external_components:
   # speaker media player: skip a failed playlist item (esphome#19862), drop once merged