diff --git a/README.md b/README.md
index a33eaa9..a3ea9ad 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Requirements
 | Requirement                      | Version/Comment |
 |:---------------------------------|:----------------|
 | Mirantis OpenStack compatibility | 7.0, 8.0, 9.0   |
-| Zabbix plugin for Fuel           | 2.6.0           |
+| Zabbix plugin for Fuel           | 2.5.1           |
 
 Installation Guide
 ==================
@@ -48,7 +48,7 @@ To install SNMP trap daemon plugin, follow these steps:
         # fuel plugins
         id | name              | version | package_version
         ---|-------------------|---------|----------------
-        1  | zabbix_monitoring | 2.6.0   | 3.0.0
+        1  | zabbix_monitoring | 2.5.1   | 3.0.0
         2  | zabbix_snmptrapd  | 1.1.0   | 3.0.0
 
 For more information and instructions, see the SNMP trap daemon plugin Guide
diff --git a/doc/plugin-guide/source/changelog.rst b/doc/plugin-guide/source/changelog.rst
index 9eccb39..8bf430a 100644
--- a/doc/plugin-guide/source/changelog.rst
+++ b/doc/plugin-guide/source/changelog.rst
@@ -2,6 +2,7 @@ Release notes / Changelog
 =========================
 
 **1.1.0**
+
 * Compatibility with MOS 9.0
 
 **1.0.1**
diff --git a/doc/plugin-guide/source/description.rst b/doc/plugin-guide/source/description.rst
index a817f34..e62616a 100644
--- a/doc/plugin-guide/source/description.rst
+++ b/doc/plugin-guide/source/description.rst
@@ -21,6 +21,6 @@ Requirements
 Requirement            Version/Comment
 ====================== ================
 Fuel                   7.0, 8.0 and 9.0
-Zabbix plugin for Fuel 2.6.0
+Zabbix plugin for Fuel 2.5.1
 ====================== ================
 
diff --git a/doc/plugin-guide/source/installation.rst b/doc/plugin-guide/source/installation.rst
index 7c18446..25bdf13 100644
--- a/doc/plugin-guide/source/installation.rst
+++ b/doc/plugin-guide/source/installation.rst
@@ -17,9 +17,9 @@ To install SNMP trap daemon for Zabbix plugin, follow these steps:
    `Fuel Plugins Catalog <https://www.mirantis.com/products/
    openstack-drivers-and-plugins/fuel-plugins/>`_.
 
-#. Copy the plugin on already installed Fuel Master node, ssh can be used for
-   that. If you do not have the Fuel Master node yet, see `Quick Start Guide
-   <https://software.mirantis.com/quick-start/>`_::
+#. Copy the plugin from your local machine to a previously deployed
+   Fuel Master node using ssh. If you do not have the Fuel Master node yet,
+   see `Quick Start Guide <https://software.mirantis.com/quick-start/>`_::
 
     # scp zabbix_snmptrapd-1.1-1.1.0-1.noarch.rpm root@<Fuel_Master_IP>:/tmp
 
@@ -33,7 +33,7 @@ To install SNMP trap daemon for Zabbix plugin, follow these steps:
     # fuel plugins
     id | name                      | version  | package_version
     ---|---------------------------|----------|----------------
-    1  | zabbix_monitoring         | 2.6.0    | 3.0.0
+    1  | zabbix_monitoring         | 2.5.1    | 3.0.0
     2  | zabbix_snmptrapd          | 1.1.0    | 3.0.0
 
 SNMP trap daemon for Zabbix plugin removal
@@ -41,7 +41,7 @@ SNMP trap daemon for Zabbix plugin removal
 
 To uninstall SNMP Trap Daemon for Zabbix plugin, follow these steps:
 
-#. Delete all Environments in which SNMP Trap Daemon for Zabbix plugin has been enabled.
+#. Delete all environments in which SNMP Trap Daemon for Zabbix plugin has been enabled.
 
 #. Uninstall the plugin::
 
@@ -54,4 +54,3 @@ To uninstall SNMP Trap Daemon for Zabbix plugin, follow these steps:
      ---|---------------------------|----------|----------------
      ...
      You can still have other plugins listed here but not zabbix_snmptrapd
-
diff --git a/doc/specs/source/index.rst b/doc/specs/source/index.rst
index 078b663..55d64e6 100644
--- a/doc/specs/source/index.rst
+++ b/doc/specs/source/index.rst
@@ -119,7 +119,7 @@ Dependencies
 ============
 
 * Fuel 7.0, 8.0 and 9.0
-* Zabbix plugin for Fuel 2.6.0
+* Zabbix plugin for Fuel 2.5.1
 
 Testing
 =======