diff --git a/nixos/doc/manual/release-notes/rl-2009.xml b/nixos/doc/manual/release-notes/rl-2009.xml
index 7a06c06fed1..0ba0ec8f89a 100644
--- a/nixos/doc/manual/release-notes/rl-2009.xml
+++ b/nixos/doc/manual/release-notes/rl-2009.xml
@@ -156,6 +156,40 @@ GRANT ALL PRIVILEGES ON *.* TO 'mysql'@'localhost' WITH GRANT OPTION;
        Support for built-in LCDs in various pieces of Logitech hardware (keyboards and USB speakers). <varname>hardware.logitech.lcd.enable</varname> enables support for all hardware supported by the g15daemon project.
      </para>
    </listitem>
+   <listitem>
+    <para>
+      Zabbix now defaults to 5.0, updated from 4.4. Please carefully read through
+      <link xlink:href="https://www.zabbix.com/documentation/current/manual/installation/upgrade/sources">the upgrade guide</link>
+      and apply any changes required. Be sure to take special note of the section on
+      <link xlink:href="https://www.zabbix.com/documentation/current/manual/installation/upgrade_notes_500#enabling_extended_range_of_numeric_float_values">enabling extended range of numeric (float) values</link>
+      as you will need to apply this database migration manually.
+    </para>
+    <para>
+      If you are using Zabbix Server with a MySQL or MariaDB database you should note that using a character set of <literal>utf8</literal> and a collate of <literal>utf8_bin</literal> has become mandatory with
+      this release. See the upstream <link xlink:href="https://support.zabbix.com/browse/ZBX-17357">issue</link> for further discussion. Before upgrading you should check the character set and collation used by
+      your database and ensure they are correct:
+<programlisting>
+  SELECT
+    default_character_set_name,
+    default_collation_name
+  FROM
+    information_schema.schemata
+  WHERE
+    schema_name = 'zabbix';
+</programlisting>
+      If these values are not correct you should take a backup of your database and convert the character set and collation as required. Here is an
+      <link xlink:href="https://www.zabbix.com/forum/zabbix-help/396573-reinstall-after-upgrade?p=396891#post396891">example</link> of how to do so, taken from
+      the Zabbix forums:
+<programlisting>
+  ALTER DATABASE `zabbix` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
+
+  -- the following will produce a list of SQL commands you should subsequently execute
+  SELECT CONCAT("ALTER TABLE ", TABLE_NAME," CONVERT TO CHARACTER SET utf8 COLLATE utf8_bin;") AS ExecuteTheString
+  FROM information_schema.`COLUMNS`
+  WHERE table_schema = "zabbix" AND COLLATION_NAME = "utf8_general_ci";
+</programlisting>
+    </para>
+   </listitem>
   </itemizedlist>
  </section>
 
diff --git a/pkgs/servers/monitoring/zabbix/versions.nix b/pkgs/servers/monitoring/zabbix/versions.nix
index c75df46cf04..f867c819d07 100644
--- a/pkgs/servers/monitoring/zabbix/versions.nix
+++ b/pkgs/servers/monitoring/zabbix/versions.nix
@@ -1,7 +1,7 @@
 generic: {
-  v44 = generic {
-    version = "4.4.8";
-    sha256 = "0l9n4l5179lf90krv1kb0lraipj7q4hyba6r48n6rj2zqx2j4mn0";
+  v50 = generic {
+    version = "5.0.2";
+    sha256 = "1cnns7ixqi7ank3cbvcs7d8rb5zh9qiqbmgivazr83jnz81qg46w";
   };
 
   v40 = generic {
diff --git a/pkgs/servers/monitoring/zabbix/web.nix b/pkgs/servers/monitoring/zabbix/web.nix
index a75deff3db2..f677fe5c0af 100644
--- a/pkgs/servers/monitoring/zabbix/web.nix
+++ b/pkgs/servers/monitoring/zabbix/web.nix
@@ -18,7 +18,7 @@ import ./versions.nix ({ version, sha256 }:
 
     installPhase = ''
       mkdir -p $out/share/zabbix/
-      cp -a frontends/php/. $out/share/zabbix/
+      cp -a ${if stdenv.lib.versionAtLeast version "5.0.0" then "ui/." else "frontends/php/."} $out/share/zabbix/
       cp ${phpConfig} $out/share/zabbix/conf/zabbix.conf.php
     '';
 
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 5882eadc73b..4508285b15a 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -687,6 +687,9 @@ mapAliases ({
   mumble_git = pkgs.mumble;
   murmur_git = pkgs.murmur;
 
+  # added 2020-08-17
+  zabbix44 = throw "Zabbix 4.4 is end of life, see https://www.zabbix.com/documentation/current/manual/installation/upgrade_notes_500 for details on upgrading to Zabbix 5.0.";
+
   # added 2019-09-06
   zeroc_ice = pkgs.zeroc-ice;
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3a15825b5a6..70522db3cb1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16922,11 +16922,11 @@ in
     server = server-pgsql;
   };
 
-  zabbix44 = recurseIntoAttrs (zabbixFor "v44");
+  zabbix50 = recurseIntoAttrs (zabbixFor "v50");
   zabbix40 = dontRecurseIntoAttrs (zabbixFor "v40");
   zabbix30 = dontRecurseIntoAttrs (zabbixFor "v30");
 
-  zabbix = zabbix44;
+  zabbix = zabbix50;
 
   zipkin = callPackage ../servers/monitoring/zipkin { };