diff --git a/README.md b/README.md
index 444b047..3fb971e 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ Supported Linux distributions and versions:
 - CentOS 8
 - AlmaLinux 8
 - Rocky Linux 8
+- Debian 11
 - Debian 10
 - Debian 9
 - Debian 8
@@ -116,12 +117,12 @@ deb:
 - libpng-dev
 - git
 - python-minimal
-- python2-minimal (Ubuntu 20 only, replaces python-minimal)
+- python2-minimal (Ubuntu 20/Debian 11 only, replaces python-minimal)
 - libvhdi-utils
 - lvm2
 - nfs-common
 - cifs-utils
-- gnupg (debian 10)
+- gnupg (debian 10/11)
 - software-properties-common (ubuntu)
 ```
 
diff --git a/xo-install.sh b/xo-install.sh
index 047ca2e..7a524df 100755
--- a/xo-install.sh
+++ b/xo-install.sh
@@ -232,8 +232,8 @@ function InstallDependenciesDeb {
 	runcmd "apt-get update"
 	printok "Running apt-get update"
 
-	#determine which python package is needed. Ubuntu 20 requires python2-minimal, 16 and 18 are python-minimal
-	if [[ "$OSNAME" == "Ubuntu" ]] && [[ "$OSVERSION" == "20" ]]; then
+	#determine which python package is needed. Ubuntu 20/Debian 11 require python2-minimal, others have python-minimal
+	if [[ "$OSNAME" =~ ^(Ubuntu|Debian)$ ]] && [[ "$OSVERSION" =~ ^(20|11)$ ]]; then
 		local PYTHON="python2-minimal"
 	else
 		local PYTHON="python-minimal"
@@ -251,11 +251,11 @@ function InstallDependenciesDeb {
 	runcmd "apt-get install -y apt-transport-https ca-certificates"
 	printok "Installing apt-transport-https and ca-certificates packages to support https repos"
 
-	if [[ "$OSNAME" == "Debian" ]] && [[ "$OSVERSION" == "10" ]]; then
+	if [[ "$OSNAME" == "Debian" ]] && [[ "$OSVERSION" =~ ^(10|11)$ ]]; then
 		echo
-		printprog "Debian 10, so installing gnupg also"
+		printprog "Debian 10/11, so installing gnupg also"
 		runcmd "apt-get install gnupg -y"
-		printok "Debian 10, so installing gnupg also"
+		printok "Debian 10/11, so installing gnupg also"
 	fi
 
 	# install setcap for non-root port binding if missing
@@ -928,8 +928,8 @@ function CheckOS {
 		exit 1
 	fi
 
-	if [[ "$OSNAME" == "Debian" ]] && [[ ! "$OSVERSION" =~ ^(8|9|10)$ ]]; then
-		printfail "Only Debian 8/9/10 supported"
+	if [[ "$OSNAME" == "Debian" ]] && [[ ! "$OSVERSION" =~ ^(8|9|10|11)$ ]]; then
+		printfail "Only Debian 8/9/10/11 supported"
 		exit 1
 	fi