build.gradle in embulk-input-gcs-0.2.7 vs build.gradle in embulk-input-gcs-0.2.8

@@ -12,13 +12,13 @@
 }
 configurations {
     provided
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
-version = "0.2.7"
+version = "0.2.8"
 
 dependencies {
     compile  "org.embulk:embulk-core:0.8.2"
     provided "org.embulk:embulk-core:0.8.2"