diff --git a/build.gradle b/build.gradle
index aaf35ad..a073dac 100644
--- a/build.gradle
+++ b/build.gradle
@@ -42,7 +42,7 @@ repositories {
 dependencies {
 	compile fileTree(dir: 'libs', includes: ['*.jar'])
 	testCompile 'junit:junit:4.12'
-	compile 'commons-net:commons-net:3.7.2'
+	compile 'commons-net:commons-net:3.9.0'
 	compileOnly 'net.java.dev.jna:jna:4.4.0'
 	compileOnly 'net.java.dev.jna:jna-platform:4.4.0'
 }