diff --git a/nagios/check_gitea_version.sh b/nagios/check_gitea_version.sh
new file mode 100755
index 0000000..b4f1c35
--- /dev/null
+++ b/nagios/check_gitea_version.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Quick and dirty NRPE script to check if
+# the local version of Gitea is up to date.
+
+# Stop at first uncatched error
+set -e
+
+# note: some local problems with IPv4, the quickest way was to force IPv6.
+LOCAL_VERSION="$( wget -6 -O - -q "https://$( hostname -f )/api/v1/version" | sed -n 's/{"version":"\([^"]\+\)"}/\1/p' )"
+UPSTREAM_VERSION="$( wget -q -O - "https://dl.gitea.io/gitea/" | egrep -- '<a href="/gitea/[0-9]+\.[0-9]+\.[0-9]+/"' | egrep -o "[0-9]+\.[0-9]+\.[0-9]+" | sort --version-sort | tail -n 1 )"
+
+if [ "$UPSTREAM_VERSION" = "$LOCAL_VERSION" ]; then
+	echo "OK ($LOCAL_VERSION / $UPSTREAM_VERSION)"
+	exit 0
+else
+	echo "WARNING ($LOCAL_VERSION / $UPSTREAM_VERSION)"
+	exit 1
+fi
diff --git a/nagios/etc/84_check-gitea.cfg b/nagios/etc/84_check-gitea.cfg
new file mode 100644
index 0000000..01515ec
--- /dev/null
+++ b/nagios/etc/84_check-gitea.cfg
@@ -0,0 +1 @@
+command[check_gitea_version_up_to_date]=/usr/local/share/scripts-admin/nagios/check_gitea_version.sh