diff --git a/.github/workflows/build-firmware.yml b/.github/workflows/build-firmware.yml
index 2f4ca70..f487108 100644
--- a/.github/workflows/build-firmware.yml
+++ b/.github/workflows/build-firmware.yml
@@ -1,7 +1,7 @@
 name: Build ESPHome Firmware
 
 env:
-  DEFAULT_ESPHOME_VERSION: "2026.4.0"
+  DEFAULT_ESPHOME_VERSION: "2026.5.3"
 
 on:
   push:
@@ -12,7 +12,7 @@ on:
       esphome_version:
         description: "ESPHome version (e.g., 2026.4.0)"
         required: true
-        default: "2026.4.0"
+        default: "2026.5.3"
       build:
         description: "Build number (e.g., b1)"
         required: true
diff --git a/.github/workflows/validate-firmware.yml b/.github/workflows/validate-firmware.yml
index 9897fce..525bc27 100644
--- a/.github/workflows/validate-firmware.yml
+++ b/.github/workflows/validate-firmware.yml
@@ -1,7 +1,7 @@
 name: Validate ESPHome Configs
 
 env:
-  ESPHOME_VERSION: "2026.4.0"
+  ESPHOME_VERSION: "2026.5.3"
 
 on:
   push:
@@ -56,7 +56,7 @@ jobs:
           echo "All package_import_url checks passed!"
 
   validate-configs:
-    name: Validate configs on ESPHome 2026.4.0
+    name: Validate configs on ESPHome 2026.5.3
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
diff --git a/create_firmware.py b/create_firmware.py
index dbb1839..b480f0d 100644
--- a/create_firmware.py
+++ b/create_firmware.py
@@ -40,7 +40,7 @@ include_files = [
 
 
 GITHUB_PAGES_URL = "https://boneio-eu.github.io/esphome"
-ESPHOME_VERSION = "2026.4.0"
+ESPHOME_VERSION = "2026.5.3"
 ESPHOME_DOCKER_IMAGE = f"ghcr.io/esphome/esphome:{ESPHOME_VERSION}"
 FIRMWARE_VERSION = ESPHOME_VERSION