diff --git a/OpenPGP-Keychain-API/build.gradle b/OpenPGP-Keychain-API/build.gradle
index 2e41492a3..47a0f376a 100644
--- a/OpenPGP-Keychain-API/build.gradle
+++ b/OpenPGP-Keychain-API/build.gradle
@@ -1,3 +1,3 @@
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.10'
-}
\ No newline at end of file
+    gradleVersion = '1.11'
+}
diff --git a/OpenPGP-Keychain-API/example-app/build.gradle b/OpenPGP-Keychain-API/example-app/build.gradle
index 975666b19..5147dc7bc 100644
--- a/OpenPGP-Keychain-API/example-app/build.gradle
+++ b/OpenPGP-Keychain-API/example-app/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.8.3'
+        classpath 'com.android.tools.build:gradle:0.9.0'
     }
 }
 
diff --git a/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.jar b/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.jar
index 583859812..3c7abdf12 100644
Binary files a/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.jar and b/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.properties b/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.properties
index 932184188..8c3a98441 100644
--- a/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.properties
+++ b/OpenPGP-Keychain-API/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Feb 14 01:26:40 CET 2014
+#Thu Mar 06 18:21:41 CET 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.10-all.zip
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.11-bin.zip
diff --git a/OpenPGP-Keychain-API/libraries/keychain-api-library/build.gradle b/OpenPGP-Keychain-API/libraries/keychain-api-library/build.gradle
index 7c923e7f6..98c9a3bd6 100644
--- a/OpenPGP-Keychain-API/libraries/keychain-api-library/build.gradle
+++ b/OpenPGP-Keychain-API/libraries/keychain-api-library/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.8.3'
+        classpath 'com.android.tools.build:gradle:0.9.0'
     }
 }
 
diff --git a/README.md b/README.md
index 038920c3d..aa8baf70e 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,15 @@ When changing build files or dependencies, respect the following requirements:
 * No dependencies from Maven (also a soft requirement for inclusion in [F-Droid](https://f-droid.org))
 * Always use a fixed Android Gradle plugin version not a dynamic one, e.g. ``0.7.3`` instead of ``0.7.+`` (allows offline builds without lookups for new versions, also some minor Android plugin versions had serious issues, i.e. [0.7.2 and 0.8.1](http://tools.android.com/tech-docs/new-build-system))
 * Commit the corresponding [Gradle wrapper](http://www.gradle.org/docs/current/userguide/gradle_wrapper.html) to the repository (allows easy building for new contributors without the need to install the required Gradle version using a package manager)
+* In order to update the build system to a newer gradle Version you need to:
+  * Update every build.gradle file with the new gradle version and/or gradle plugin version
+    * build.gradle
+    * OpenPGP-Keychain/build.gradle
+    * OpenPGP-Keychain-API/build.gradle
+    * OpenPGP-Keychain-Api/libraries/build.gradle
+    * OpenPGP-Keychain/example-app/build.gradle
+  * run ./gradlew wrapper twice to update gradle and download the new jar file
+  * commit the new jar and property files
 
 ### Translations
 
diff --git a/build.gradle b/build.gradle
index 86c40fa3a..305e8d1b9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.8.3'
+        classpath 'com.android.tools.build:gradle:0.9.0'
     }
 }
 
@@ -15,5 +15,5 @@ allprojects {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '1.10'
-}
\ No newline at end of file
+    gradleVersion = '1.11'
+}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 583859812..3c7abdf12 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9559bfd8b..9c0d6700a 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Feb 09 18:34:27 CET 2014
+#Thu Mar 06 18:21:40 CET 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.10-all.zip
+distributionUrl=http\://services.gradle.org/distributions/gradle-1.11-bin.zip