diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9aa502..ca7dd5c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## 1.4.0+13 - UNRELEASED
+## 1.4.0+13
 * Increased target SDK to `30`
 * Upgraded to Dart `2.15.1`
 * Upgraded to use null-safety
diff --git a/android/build.gradle b/android/build.gradle
index 7941590..cd7f986 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,7 +1,7 @@
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
@@ -14,7 +14,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
diff --git a/android/fastlane/README.md b/android/fastlane/README.md
index cf03cbb..ee3138f 100644
--- a/android/fastlane/README.md
+++ b/android/fastlane/README.md
@@ -1,54 +1,72 @@
 fastlane documentation
-================
+----
+
 # Installation
 
 Make sure you have the latest version of the Xcode command line tools installed:
 
-```
+```sh
 xcode-select --install
 ```
 
-Install _fastlane_ using
-```
-[sudo] gem install fastlane -NV
-```
-or alternatively using `brew install fastlane`
+For _fastlane_ installation instructions, see [Installing _fastlane_](https://docs.fastlane.tools/#installing-fastlane)
 
 # Available Actions
+
 ## Android
+
 ### android build_debug
+
+```sh
+[bundle exec] fastlane android build_debug
 ```
-fastlane android build_debug
-```
+
 Build Debug
+
 ### android build_production
+
+```sh
+[bundle exec] fastlane android build_production
 ```
-fastlane android build_production
-```
+
 Build Production
+
 ### android build
+
+```sh
+[bundle exec] fastlane android build
 ```
-fastlane android build
-```
+
 Build
+
 ### android alpha
+
+```sh
+[bundle exec] fastlane android alpha
 ```
-fastlane android alpha
-```
+
 Deploy a new version to the Google Play as Alpha
+
 ### android beta
+
+```sh
+[bundle exec] fastlane android beta
 ```
-fastlane android beta
-```
+
 Deploy a new version to the Google Play as Beta
+
 ### android deploy
+
+```sh
+[bundle exec] fastlane android deploy
 ```
-fastlane android deploy
-```
+
 Deploy a new version to the Google Play
 
 ----
 
-This README.md is auto-generated and will be re-generated every time [fastlane](https://fastlane.tools) is run.
-More information about fastlane can be found on [fastlane.tools](https://fastlane.tools).
-The documentation of fastlane can be found on [docs.fastlane.tools](https://docs.fastlane.tools).
+This README.md is auto-generated and will be re-generated every time [_fastlane_](https://fastlane.tools) is run.
+
+More information about _fastlane_ can be found on [fastlane.tools](https://fastlane.tools).
+
+The documentation of _fastlane_ can be found on [docs.fastlane.tools](https://docs.fastlane.tools).