diff --git a/docs/development/environment-setup/mac-os.md b/docs/development/environment-setup/mac-os.md
index 860291e79..9a1d456ad 100644
--- a/docs/development/environment-setup/mac-os.md
+++ b/docs/development/environment-setup/mac-os.md
@@ -37,19 +37,19 @@ source ~/.rvm/scripts/rvm
 
 ### Install Ruby
 
-Chatwoot APIs are built on Ruby on Rails, you need install ruby 2.6.5
+Chatwoot APIs are built on Ruby on Rails, you need install ruby 2.7.0
 
 If you are using `rvm` :
 
 ```bash
-rvm install ruby-2.6.5
-rvm use 2.6.5
+rvm install ruby-2.7.0
+rvm use 2.7.0
 ```
 
 If you are using `rbenv` to manage ruby versions do :
 
 ```bash
-rbenv install 2.6.5
+rbenv install 2.7.0
 ```
 
 `rbenv` identifies the ruby version from `.ruby-version` file on the root of the project and loads it automatically.
diff --git a/docs/development/environment-setup/ubuntu.md b/docs/development/environment-setup/ubuntu.md
index 8d62d7b54..ed062226a 100644
--- a/docs/development/environment-setup/ubuntu.md
+++ b/docs/development/environment-setup/ubuntu.md
@@ -33,16 +33,16 @@ Enable `Run command as a login shell` in terminal `Preferences`. Restart your co
 
 ### Install Ruby
 
-Chatwoot APIs are built on Ruby on Rails, you need install ruby 2.6.5
+Chatwoot APIs are built on Ruby on Rails, you need install ruby 2.7.0
 
 ```bash
-rvm install ruby-2.6.5
+rvm install ruby-2.7.0
 ```
 
-Use ruby 2.6.5 as default
+Use ruby 2.7.0 as default
 
 ```bash
-rvm use 2.6.5 --default
+rvm use 2.7.0 --default
 ```
 
 ### Install Node.js
diff --git a/docs/development/environment-setup/windows.md b/docs/development/environment-setup/windows.md
index d3943cefc..144f09c36 100644
--- a/docs/development/environment-setup/windows.md
+++ b/docs/development/environment-setup/windows.md
@@ -26,15 +26,15 @@ sudo apt-get update
 sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev software-properties-common libffi-dev
 ```
 
-Install RVM & ruby version 2.6.5
+Install RVM & ruby version 2.7.0
 
 ```bash
 sudo apt-get install libgdbm-dev libncurses5-dev automake libtool bison libffi-dev
 gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
 curl -sSL https://get.rvm.io | bash -s stable
 source ~/.rvm/scripts/rvm
-rvm install 2.6.5
-rvm use 2.6.5 --default
+rvm install 2.7.0
+rvm use 2.7.0 --default
 ruby -v
 ```