diff --git a/README.md b/README.md
index 294a2844..2ffbf3d8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Power Mail-in-a-Box
-**[Installation](#installation)** (current version: v56.2)
+**[Installation](#installation)** (current version: v56.3)
 
 [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/davness)
 
diff --git a/api/mailinabox.yml b/api/mailinabox.yml
index c59bf907..265d39ef 100644
--- a/api/mailinabox.yml
+++ b/api/mailinabox.yml
@@ -15,7 +15,7 @@ info:
   license:
     name: CC0 1.0 Universal
     url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
-  version: 56.2
+  version: 56.3
   x-logo:
     url: https://mailinabox.email/static/logo.png
     altText: Mail-in-a-Box logo
diff --git a/setup/bootstrap.sh b/setup/bootstrap.sh
index 90e44fdb..bd3b17a9 100644
--- a/setup/bootstrap.sh
+++ b/setup/bootstrap.sh
@@ -35,7 +35,7 @@ if [ -z "$TAG" ]; then
 		[ "$OS" == "Debian GNU/Linux 11 (bullseye)" ] ||
 		[ "$(echo $OS | grep -o 'Ubuntu 20.04')" == "Ubuntu 20.04" ]
 	then
-		TAG=v56.2
+		TAG=v56.3
 	else
 		echo "This script must be run on a system running one of the following OS-es:"
 		echo "* Debian 10 (buster)"