diff --git a/portage_exporter.sh b/portage_exporter.sh
index 3799e24..ccd9ba5 100755
--- a/portage_exporter.sh
+++ b/portage_exporter.sh
@@ -8,6 +8,19 @@ TEXTFILE_COLLECTOR_DIR=${TEXTFILE_COLLECTOR_DIR:-/var/lib/node_exporter/}
 
 PROM_FILE=$TEXTFILE_COLLECTOR_DIR/portage.prom
 TMP_FILE=$PROM_FILE.$$
+
+CRITICAL=(
+  "www-servers/"
+  "www-client/"
+  "www-apps/"
+  "dev-libs/openssl"
+  "net-libs/gnutls"
+  "webkit"
+  "webengine"
+  "mail-mta/postfix"
+  "net-mail/dovecot"
+  )
+
 function dumpInfo () {
   local root="$1"
   if [[ "$root" == "/" ]] ; then
@@ -19,10 +32,12 @@ function dumpInfo () {
   age_seconds="$(( $(date +%s) - $("${mychroot[@]}" date +%s -r "$portage_timestamp") ))"
   update_count="$("${mychroot[@]}" eix -u -c | wc -l)"
   selected_update_count="$("${mychroot[@]}" eix -u -c --selected | wc -l)"
+  critical_update_count="$("${mychroot[@]}" eix -u -c | grep ${CRITICAL[@]/#/-e } | wc -l)"
   glsa_count="$("${mychroot[@]}" glsa-check -t all 2> /dev/null | wc -l )"
   echo portage_age_seconds\{host=\""$HOSTNAME"\", root=\""$root"\"\} "$age_seconds"
   echo portage_package_update_count\{host=\""$HOSTNAME"\", root=\""$root"\"\} "$update_count"
   echo portage_selected_package_update_count\{host=\""$HOSTNAME"\", root=\""$root"\"\} "$selected_update_count"
+  echo portage_critical_package_update_count\{host=\""$HOSTNAME"\", root=\""$root"\"\} "$critical_update_count"
   echo portage_glsa_count\{host=\""$HOSTNAME"\", root=\""$root"\"\} "$glsa_count"
 }