diff --git a/images/nagios/Dockerfile b/images/nagios/Dockerfile
index a171634..b9440ae 100644
--- a/images/nagios/Dockerfile
+++ b/images/nagios/Dockerfile
@@ -8,7 +8,7 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
     org.label-schema.vcs-ref=$VCS_REF \
     org.label-schema.vcs-url=https://github.com/instantlinux/docker-tools
 
-ARG NAGIOS_VERSION=4.4.13-r1
+ARG NAGIOS_VERSION=4.5.1-r0
 ARG NAGIOS_GID=1000
 ARG NAGIOS_UID=999
 ARG PLUGINS_VERSION=2.4.5-r1
@@ -29,13 +29,14 @@ RUN deluser xfs && addgroup -g $NAGIOS_GID nagios && \
     adduser -g www-data -u $WWW_UID -DSH -h /var/www www-data && \
     adduser -G nagios -g "Nagios Server" -DSH -h /var/nagios -u $NAGIOS_UID \
       nagios && \
-    apk add --update --no-cache nagios=$NAGIOS_VERSION nagios-web \
+    echo '@edge http://dl-cdn.alpinelinux.org/alpine/edge/main' \
+      >>/etc/apk/repositories && \
+    apk add --update --no-cache nagios@edge=$NAGIOS_VERSION nagios-web \
       nagios-plugins-all=$PLUGINS_VERSION \
       nagios-plugins-mysql=$PLUGINS_VERSION \
       nrpe-plugin bash curl fcgiwrap file mariadb-client nginx openssl \
       perl-crypt-x509 perl-libwww perl-text-glob perl-timedate \
-      php81 php81-fpm py3-pip python3 ssmtp tzdata && \
-    pip3 install pymysql==1.0.2 && \
+      php81 php81-fpm py3-pip py3-pymysql python3 ssmtp tzdata && \
     addgroup nginx nagios && \
     chmod u+s /usr/lib/nagios/plugins/check_ping && \
     sed -i -e s/use_syslog=.*/use_syslog=0/ \
@@ -50,6 +51,6 @@ EXPOSE 80
 VOLUME /etc/nagios /opt/nagios/plugins /var/nagios
 
 COPY nginx.conf /etc/nginx/http.d/nagios.conf
-COPY php-fpm-www.conf /etc/php8/php-fpm.d/www.conf
+COPY php-fpm-www.conf /etc/php81/php-fpm.d/www.conf
 COPY entrypoint.sh mail.sh /usr/local/bin/
 ENTRYPOINT /usr/local/bin/entrypoint.sh
diff --git a/images/nagios/entrypoint.sh b/images/nagios/entrypoint.sh
index 3698e49..4660eec 100755
--- a/images/nagios/entrypoint.sh
+++ b/images/nagios/entrypoint.sh
@@ -94,19 +94,10 @@ for item in backup hosts services; do
 done
 start-stop-daemon -u nginx -b --exec /usr/bin/fcgiwrap -- \
   -s unix:/run/fcgiwrap/fcgiwrap.sock
-/usr/sbin/php-fpm8
+/usr/sbin/php-fpm81
 /usr/sbin/nginx
 touch /var/nagios/nagios.log && tail -1 -f /var/nagios/nagios.log &
 find /var/nagios -not -user nagios -exec chown nagios.nagios {} \;
 find /etc/nagios/objects -not -user www-data -exec chown www-data.nagios {} \;
 
-# TODO change this back to exec after fix is published
-#  https://github.com/NagiosEnterprises/nagioscore/issues/861
-if ! /usr/sbin/nagios /etc/nagios/nagios.cfg; then
-  echo Segfault - please set check_for_updates=0 in /etc/nagios/nagios.cfg
-  exit 1
-fi
-
-while [ 1 == 1 ]; do
-  sleep 60
-done
+exec /usr/sbin/nagios /etc/nagios/nagios.cfg