diff --git a/build.gradle b/build.gradle
index 5c0f981c..0e67a66c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ import com.github.mgk.gradle.*
 
 buildscript {
     ext {
-        es_version = version.replaceAll(/-.+$/, "")
+        es_version = version.replaceAll(/\.[0-9]+(|-.+)$/, "")
     }
 
     repositories {