diff --git a/build.gradle b/build.gradle
index 9aeccc0..5f079b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -50,7 +50,9 @@ sourceSets {
 }
 
 compileJava.options.encoding = 'UTF-8'
+compileJava.options << '-Xlint:all'
 compileTestJava.options.encoding = 'UTF-8'
+compileTestJava.options.options << '-Xlint:all'
 javadoc.options.encoding = 'UTF-8'
 
 jar {