diff --git a/esphome-beta/config.json b/esphome-beta/config.json
index 0cbd7de..8c8b643 100644
--- a/esphome-beta/config.json
+++ b/esphome-beta/config.json
@@ -39,5 +39,5 @@
   "stage": "experimental",
   "uart": true,
   "url": "https://beta.esphome.io/",
-  "version": "1.21.0b2"
+  "version": "1.21.0b3"
 }
\ No newline at end of file
diff --git a/template/addon_config.yaml b/template/addon_config.yaml
index 7ab23a6..0311c03 100644
--- a/template/addon_config.yaml
+++ b/template/addon_config.yaml
@@ -52,7 +52,7 @@ esphome-beta:
   <<: *base
   directory: esphome-beta
   name: ESPHome (beta)
-  version: '1.21.0b2'  # BETA
+  version: '1.21.0b3'  # BETA
   slug: esphome-beta
   description: "Beta version of ESPHome add-on"
   url: https://beta.esphome.io/