build.gradle in embulk-input-gcs-0.1.2 vs build.gradle in embulk-input-gcs-0.1.3

@@ -10,10 +10,13 @@
 }
 configurations {
     provided
 }
 
-version = "0.1.2"
+sourceCompatibility = 1.7
+targetCompatibility = 1.7
+
+version = "0.1.3"
 
 dependencies {
     compile  "org.embulk:embulk-core:0.5.1"
     provided "org.embulk:embulk-core:0.5.1"