diff --git a/build.gradle b/build.gradle
index 8db8001..3e0f04a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ repositories {
     mavenCentral()
 }
 
-sourceCompatibility = 10
+sourceCompatibility = 8
 
 dependencies {
     compileOnly 'javax.servlet:javax.servlet-api:4.0.1'