diff --git a/net-mgmt/nagios4/Makefile b/net-mgmt/nagios4/Makefile
index b823f2bd39c0..bc6de95777ff 100644
--- a/net-mgmt/nagios4/Makefile
+++ b/net-mgmt/nagios4/Makefile
@@ -1,5 +1,5 @@
PORTNAME= nagios
-PORTVERSION= 4.5.0
+PORTVERSION= 4.5.1
PORTREVISION= 0
PORTEPOCH= 1
CATEGORIES= net-mgmt
diff --git a/net-mgmt/nagios4/distinfo b/net-mgmt/nagios4/distinfo
index 2e6b571bdb0c..7d6997ce2252 100644
--- a/net-mgmt/nagios4/distinfo
+++ b/net-mgmt/nagios4/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1708115629
-SHA256 (nagios-4.5.0.tar.gz) = 164e05daed1adf72640b323453b6c13f4d13d90e56a95c7cdd8dccf8519e9be0
-SIZE (nagios-4.5.0.tar.gz) = 11540118
+TIMESTAMP = 1710581441
+SHA256 (nagios-4.5.1.tar.gz) = 171fc577e026e32079d17057cd49a9730bb86e44169c4735d9b66fa0b43e045a
+SIZE (nagios-4.5.1.tar.gz) = 11540195
diff --git a/net-mgmt/nagios4/files/patch-html_main.php b/net-mgmt/nagios4/files/patch-html_main.php
index a8228acc1c12..a820104e48fa 100644
--- a/net-mgmt/nagios4/files/patch-html_main.php
+++ b/net-mgmt/nagios4/files/patch-html_main.php
@@ -1,9 +1,13 @@
---- html/main.php.orig 2024-02-17 09:09:32.460023000 +0100
-+++ html/main.php 2024-02-17 09:12:55.192427000 +0100
-@@ -146,33 +146,6 @@ $this_year = '2023';
- Nagios® Core™
- Version
- November 14, 2023
+--- html/main.php.orig 2024-03-16 10:46:27.911029000 +0100
++++ html/main.php 2024-03-16 10:48:12.929841000 +0100
+@@ -142,38 +142,6 @@ $this_year = '2024';
+
+
+
+-
+-
Nagios® Core™
+-
Version
+-
February 28, 2024
-
-