diff --git a/build.gradle b/build.gradle
index e38d34c..c0cfe72 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,9 +20,9 @@ dependencies {
 }
 
 compileKotlin {
-    kotlinOptions.jvmTarget = '8'
+    kotlinOptions.jvmTarget = '1.8'
 }
 
 compileTestKotlin {
-    kotlinOptions.jvmTarget = '8'
+    kotlinOptions.jvmTarget = '1.8'
 }