diff --git a/build.gradle b/build.gradle
index 41f39941f..c75c3187a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:1.0.1'
+		classpath 'com.android.tools.build:gradle:1.2.3'
 	}
 }
 
diff --git a/libs/MemorizingTrustManager/build.gradle b/libs/MemorizingTrustManager/build.gradle
index aa022a938..47491fecf 100644
--- a/libs/MemorizingTrustManager/build.gradle
+++ b/libs/MemorizingTrustManager/build.gradle
@@ -3,7 +3,7 @@ buildscript {
 		mavenCentral()
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:0.7.+'
+		classpath 'com.android.tools.build:gradle:1.2.3'
 	}
 }
 
diff --git a/libs/openpgp-api-lib/build.gradle b/libs/openpgp-api-lib/build.gradle
index 6e8fdfb5d..a991cf267 100644
--- a/libs/openpgp-api-lib/build.gradle
+++ b/libs/openpgp-api-lib/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.12.2'
+        classpath 'com.android.tools.build:gradle:1.2.3'
     }
 }