diff --git a/lxc/nginx-proxy-manager/install/ubuntu.sh b/lxc/nginx-proxy-manager/install/debian.sh
similarity index 90%
rename from lxc/nginx-proxy-manager/install/ubuntu.sh
rename to lxc/nginx-proxy-manager/install/debian.sh
index 603340a..1cc982b 100644
--- a/lxc/nginx-proxy-manager/install/ubuntu.sh
+++ b/lxc/nginx-proxy-manager/install/debian.sh
@@ -2,6 +2,9 @@
 set -euo pipefail
 trap trapexit EXIT SIGTERM
 
+DISTRO_ID=$(cat /etc/*-release | grep -w ID | cut -d= -f2 | tr -d '"')
+DISTRO_CODENAME=$(cat /etc/*-release | grep -w VERSION_CODENAME | cut -d= -f2 | tr -d '"')
+
 TEMPDIR=$(mktemp -d)
 TEMPLOG="$TEMPDIR/tmplog"
 TEMPERR="$TEMPDIR/tmperr"
@@ -68,7 +71,7 @@ fi
 log "Installing dependencies"
 runcmd apt-get update
 export DEBIAN_FRONTEND=noninteractive
-runcmd 'sudo apt-get install -y --no-install-recommends $DEVDEPS gnupg openssl ca-certificates apache2-utils logrotate'
+runcmd 'apt-get install -y --no-install-recommends $DEVDEPS gnupg openssl ca-certificates apache2-utils logrotate'
 
 # Install Python
 log "Installing python"
@@ -86,9 +89,12 @@ runcmd pip install --no-cache-dir cffi certbot
 # Install openresty
 log "Installing openresty"
 wget -qO - https://openresty.org/package/pubkey.gpg | apt-key add -
-_distro_release=$(lsb_release -sc)
-_distro_release=$(wget $WGETOPT "http://openresty.org/package/ubuntu/dists/" -O - | grep -o "$_distro_release" | head -n1 || true)
-echo "deb [trusted=yes] http://openresty.org/package/ubuntu ${_distro_release:-focal} main" | tee /etc/apt/sources.list.d/openresty.list
+_distro_release=$(wget $WGETOPT "http://openresty.org/package/$DISTRO_ID/dists/" -O - | grep -o "$DISTRO_CODENAME" | head -n1 || true)
+if [ $DISTRO_ID = "ubuntu" ]; then
+  echo "deb [trusted=yes] http://openresty.org/package/$DISTRO_ID ${_distro_release:-focal} main" | tee /etc/apt/sources.list.d/openresty.list
+else
+  echo "deb [trusted=yes] http://openresty.org/package/$DISTRO_ID ${_distro_release:-bullseye} openresty" | tee /etc/apt/sources.list.d/openresty.list
+fi
 runcmd apt-get update && apt-get install -y -q --no-install-recommends openresty
 
 # Install nodejs
diff --git a/lxc/nginx-proxy-manager/setup.sh b/lxc/nginx-proxy-manager/setup.sh
index 16f7d10..a126d5a 100644
--- a/lxc/nginx-proxy-manager/setup.sh
+++ b/lxc/nginx-proxy-manager/setup.sh
@@ -8,18 +8,23 @@ if [ "$(uname)" != "Linux" ]; then
 fi
 
 DISTRO=$(cat /etc/*-release | grep -w ID | cut -d= -f2 | tr -d '"')
-if [ "$DISTRO" != "alpine" ] && [ "$DISTRO" != "ubuntu" ]; then
+if [ "$DISTRO" != "alpine" ] && [ "$DISTRO" != "ubuntu" ] && [ "$DISTRO" != "debian" ]; then
   echo "DISTRO NOT SUPPORTED"
   exit 1
 fi
 
+INSTALL_SCRIPT=$DISTRO
+if [ "$DISTRO" = "ubuntu" ]; then
+  INSTALL_SCRIPT="debian"
+fi
+
 rm -rf $TMP
-wget -O "$TMP" "$URL/$DISTRO.sh"
+wget -O "$TMP" "$URL/$INSTALL_SCRIPT.sh"
 
 chmod +x "$TMP"
 
 if [ "$(command -v bash)" ]; then
-  sudo bash "$TMP"
+  $(command -v sudo) bash "$TMP"
 else
   sh "$TMP"
 fi