diff --git a/home-assistant-glow/esp32.yaml b/home-assistant-glow/esp32.yaml
index 38150d70..78114a03 100644
--- a/home-assistant-glow/esp32.yaml
+++ b/home-assistant-glow/esp32.yaml
@@ -8,7 +8,7 @@
 substitutions:
   device_name: home-assistant-glow
   friendly_name: Home Assistant Glow
-  project_version: "4.2.0"
+  project_version: "4.2.1"
   device_description: "Measure your energy consumption with the pulse LED on your smart meter - ESP32 Generic"
 
   # Define the GPIO pins
@@ -37,7 +37,7 @@ esp32:
 packages:
   remote_package:
     url: https://github.com/klaasnicolaas/home-assistant-glow/
-    ref: "4.2.0"
+    ref: "4.2.1"
     files:
       - components/basis.yaml
       - components/updates.yaml
diff --git a/home-assistant-glow/esp8266.yaml b/home-assistant-glow/esp8266.yaml
index 1aa70635..6d96f964 100644
--- a/home-assistant-glow/esp8266.yaml
+++ b/home-assistant-glow/esp8266.yaml
@@ -8,7 +8,7 @@
 substitutions:
   device_name: home-assistant-glow
   friendly_name: Home Assistant Glow
-  project_version: "4.2.0"
+  project_version: "4.2.1"
   device_description: "Measure your energy consumption with the pulse LED on your smart meter - ESP8266 Generic"
 
   # Define the GPIO pins
@@ -35,7 +35,7 @@ esp8266:
 packages:
   remote_package:
     url: https://github.com/klaasnicolaas/home-assistant-glow/
-    ref: "4.2.0"
+    ref: "4.2.1"
     files:
       - components/basis.yaml
       - components/updates.yaml