diff --git a/build.gradle b/build.gradle
index 032292769..e5c219590 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ plugins {
     id 'com.github.johnrengelman.shadow' version '5.2.0'
 }
 
-def releaseVersion = '1.7.0'
+def releaseVersion = '1.6.6'
 def releaseBuild = false;
 
 if (System.getenv('CI')) {