diff --git a/README.md b/README.md
index 3d2c6a9..8a16e52 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Ansible role which manages [MongoDB](http://www.mongodb.org/).
 - Configure mongodb users
 - Configure replication
 - Provide handlers for restart and reload;
-- Setup MMS authomation agent;
+- Setup MMS automation agent;
 
 MongoDB support matrix:
 
@@ -14,12 +14,12 @@ MongoDB support matrix:
 | -------------- | :-----------: | :----------------: | :----------------: | :----------------: | :----------------: |
 | Ubuntu 14.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |        :x:         |
 | Ubuntu 16.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Ubuntu 18.04   |  :no_entry:   |        :x:         | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+| Ubuntu 18.04   |  :no_entry:   |        :x:         |        :x:         | :white_check_mark: | :white_check_mark: |
 | Debian 8.x     |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |        :x:         |
 | Debian 9.x     |  :no_entry:   |        :x:         | :white_check_mark: | :white_check_mark: | :white_check_mark: |
 | RHEL 6.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
 | RHEL 7.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Amazon Linux 2 |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+| Amazon Linux 2 |  :no_entry:   | :white_check_mark: |        :x:         | :white_check_mark: | :white_check_mark: |
 
 - :white_check_mark: - fully tested, should works fine
 - :interrobang: - maybe works, not tested
@@ -35,9 +35,9 @@ MongoDB support matrix:
 mongodb_package: mongodb-org
 
 # You can control installed version via this param.
-# Should be '3.4', '3.6' or '4.0'. This role doesn't support MongoDB < 3.4.
+# Should be '3.4', '3.6', '4.0' or '4.2'. This role doesn't support MongoDB < 3.4.
 # I will recommend you to use latest version of MongoDB.
-mongodb_version: "3.6"
+mongodb_version: "4.2"
 
 mongodb_pymongo_from_pip: true # Install latest PyMongo via PIP or package manager
 mongodb_pymongo_pip_version: 3.6.1 # Choose PyMong version to install from pip. If not set use latest
diff --git a/tasks/install.amazon.yml b/tasks/install.amazon.yml
index 993d684..9553600 100644
--- a/tasks/install.amazon.yml
+++ b/tasks/install.amazon.yml
@@ -17,16 +17,19 @@
   yum:
     name: "{{ mongodb_package }}{% if (mongodb_version | length > 3) %}={{ mongodb_version }}{% endif %}"
     state: "{{ mongodb_package_state }}"
+    lock_timeout: "{{ yum_lock_timeout }}"
 
 - name: Install numactl package
   yum:
     name: numactl
     state: present
+    lock_timeout: "{{ yum_lock_timeout }}"
 
 - name: Install PyMongo package
   yum:
     name: python-pymongo
     state: present
+    lock_timeout: "{{ yum_lock_timeout }}"
   when: not mongodb_pymongo_from_pip
 
 - name: Install PIP
@@ -34,6 +37,7 @@
     name:
       - python-devel
       - python-pip
+    lock_timeout: "{{ yum_lock_timeout }}"
   when: mongodb_pymongo_from_pip
 
 - name: Install PyMongo from PIP
diff --git a/tasks/install.redhat.yml b/tasks/install.redhat.yml
index f2b060d..6400fb6 100644
--- a/tasks/install.redhat.yml
+++ b/tasks/install.redhat.yml
@@ -23,16 +23,19 @@
   yum:
     name: "{{ mongodb_package }}{% if (mongodb_version | length > 3) %}={{ mongodb_version }}{% endif %}"
     state: "{{ mongodb_package_state }}"
+    lock_timeout: "{{ yum_lock_timeout }}"
 
 - name: Install numactl package
   yum:
     name: numactl
     state: present
+    lock_timeout: "{{ yum_lock_timeout }}"
 
 - name: Install PyMongo package
   yum:
     name: python-pymongo
     state: present
+    lock_timeout: "{{ yum_lock_timeout }}"
   when: not mongodb_pymongo_from_pip
 
 - name: Install PIP
@@ -40,6 +43,7 @@
     name:
       - python-devel
       - python-pip
+    lock_timeout: "{{ yum_lock_timeout }}"
   when: mongodb_pymongo_from_pip | bool
 
 - name: Install PyMongo from PIP
diff --git a/vars/Amazon.yml b/vars/Amazon.yml
index ef029bd..1ad42a2 100644
--- a/vars/Amazon.yml
+++ b/vars/Amazon.yml
@@ -11,3 +11,5 @@ mongodb_repository_gpgkey:
   "3.6": "https://www.mongodb.org/static/pgp/server-3.6.asc"
 
 mongodb_pidfile_path: "{{ '/var/run/mongodb/mongod.pid' if ('mongodb-org' in mongodb_package) else '' }}"
+
+yum_lock_timeout: 180
diff --git a/vars/RedHat.yml b/vars/RedHat.yml
index c810d34..d04db94 100644
--- a/vars/RedHat.yml
+++ b/vars/RedHat.yml
@@ -1,5 +1,4 @@
 ---
-
 mongodb_repository:
   "3.4": "https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/$basearch/"
   "3.6": "https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.6/$basearch/"
@@ -13,3 +12,5 @@ mongodb_repository_gpgkey:
   "4.2": "https://www.mongodb.org/static/pgp/server-4.2.asc"
 
 mongodb_pidfile_path: "{{ '/var/run/mongodb/mongod.pid' if ('mongodb-org' in mongodb_package) else '' }}"
+
+yum_lock_timeout: 180