diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d50a963..454357d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -59,14 +59,15 @@ jobs:
           - ubuntu:22.04
           - ubuntu:20.04
           - ubuntu:18.04
+          - debian:bookworm
           - debian:bullseye
           - debian:buster
-          - centos:centos7
           - rockylinux:9
           - rockylinux:8
+          - centos:centos7
           - fedora:37
           - fedora:36
-          - alpine:3.17
+          - alpine:3.18
 
     container:
       image: ${{ matrix.container }}
diff --git a/.github/workflows/ostypevars.sh b/.github/workflows/ostypevars.sh
index 6ccdefb..1acb8f9 100644
--- a/.github/workflows/ostypevars.sh
+++ b/.github/workflows/ostypevars.sh
@@ -131,6 +131,20 @@ elif [ "${CI_OSTYPE}" = "ubuntu:18.04" ] || [ "${CI_OSTYPE}" = "ubuntu:bionic" ]
 	PKG_EXT="deb"
 	IS_OS_UBUNTU=1
 
+elif [ "${CI_OSTYPE}" = "debian:12" ] || [ "${CI_OSTYPE}" = "debian:bookworm" ]; then
+	DIST_TAG="debian/bookworm"
+	INSTALL_PKG_LIST="git autoconf autotools-dev make dh-make fakeroot dpkg-dev devscripts pkg-config ruby-dev rubygems rubygems-integration procps"
+	INSTALLER_BIN="apt-get"
+	UPDATE_CMD="update"
+	UPDATE_CMD_ARG=""
+	INSTALL_CMD="install"
+	INSTALL_CMD_ARG=""
+	INSTALL_AUTO_ARG="-y"
+	INSTALL_QUIET_ARG="-qq"
+	PKG_OUTPUT_DIR="debian_build"
+	PKG_EXT="deb"
+	IS_OS_DEBIAN=1
+
 elif [ "${CI_OSTYPE}" = "debian:11" ] || [ "${CI_OSTYPE}" = "debian:bullseye" ]; then
 	DIST_TAG="debian/bullseye"
 	INSTALL_PKG_LIST="git autoconf autotools-dev make dh-make fakeroot dpkg-dev devscripts pkg-config ruby-dev rubygems rubygems-integration procps"
@@ -229,8 +243,8 @@ elif [ "${CI_OSTYPE}" = "fedora:36" ]; then
 	PKG_EXT="rpm"
 	IS_OS_FEDORA=1
 
-elif [ "${CI_OSTYPE}" = "alpine:3.17" ]; then
-	DIST_TAG="alpine/v3.17"
+elif [ "${CI_OSTYPE}" = "alpine:3.18" ]; then
+	DIST_TAG="alpine/v3.18"
 	INSTALL_PKG_LIST="bash sudo alpine-sdk automake autoconf musl-locales ruby-dev procps"
 	INSTALLER_BIN="apk"
 	UPDATE_CMD="update"
diff --git a/buildutils/make_variables.sh b/buildutils/make_variables.sh
index f6727cb..7eb1cbb 100755
--- a/buildutils/make_variables.sh
+++ b/buildutils/make_variables.sh
@@ -205,7 +205,7 @@ elif [ "${PRGMODE}" = "DEBHELPER" ]; then
 	# That string is depended debhelper package version and os etc.
 	# (if not ubuntu/debian os, returns default string)
 	#
-	OS_ID_STRING=$(grep '^ID[[:space:]]*=[[:space:]]*' /etc/os-release | sed -e 's|^ID[[:space:]]*=[[:space:]]*||g' -e 's|^[[:space:]]*||g' -e 's|[[:space:]]*$||g')
+	OS_ID_STRING=$(grep '^ID[[:space:]]*=[[:space:]]*' /etc/os-release | sed -e 's|^ID[[:space:]]*=[[:space:]]*||g' -e 's|^[[:space:]]*||g' -e 's|[[:space:]]*$||g' -e 's|"||g')
 
 	DEBHELPER_MAJOR_VER=$(apt-cache show debhelper 2>/dev/null | grep Version 2>/dev/null | awk '{print $2}' 2>/dev/null | sed -e 's/\..*/ /g' 2>/dev/null)
 
@@ -220,10 +220,10 @@ elif [ "${PRGMODE}" = "DEBHELPER" ]; then
 	fi
 
 	if [ -n "${OS_ID_STRING}" ]; then
-		if [ "${OS_ID_STRING}" = "debian" ]; then
+		if echo "${OS_ID_STRING}" | grep -q -i "debian"; then
 			RESULT="debhelper (>= 9.20160709)${DEB_WITH_SYSTEMD_STRING}, autotools-dev"
 
-		elif [ "${OS_ID_STRING}" = "ubuntu" ]; then
+		elif echo "${OS_ID_STRING}" | grep -q -i "ubuntu"; then
 			if [ "${DEBHELPER_MAJOR_VER}" -lt 10 ]; then
 				RESULT="debhelper (>= 9.20160709)${DEB_WITH_SYSTEMD_STRING}, autotools-dev"
 			else
@@ -243,7 +243,7 @@ elif [ "${PRGMODE}" = "RPMGROUP" ]; then
 	# Fedora rpm does not need "Group" key in spec file.
 	# If not fedora, returns "NEEDRPMGROUP", and you must replace this string in configure.ac
 	#
-	if grep -q '^ID[[:space:]]*=[[:space:]]*["]*fedora["]*[[:space:]]*$' /etc/os-release; then
+	if grep -q -i '^ID[[:space:]]*=[[:space:]]*["]*fedora["]*[[:space:]]*$' /etc/os-release; then
 		RESULT=""
 	else
 		RESULT="NEEDRPMGROUP"