diff --git a/metadata/com.github.axet.darknessimmunity.txt b/metadata/com.github.axet.darknessimmunity.txt
index ccadc29367..2501d9c5ec 100644
--- a/metadata/com.github.axet.darknessimmunity.txt
+++ b/metadata/com.github.axet.darknessimmunity.txt
@@ -27,7 +27,7 @@ Build:1.2.17,25
     commit=darknessimmunity-1.2.17
     subdir=app
     gradle=yes
-    prebuild=echo 'buildscript { repositories { google() } }' >> ../build.gradle
+    prebuild=sed -i -e "s/gradleVersion = '3\.3'/gradleVersion = '4.1'/; /jcenter/a\        maven { url 'https://maven.google.com' }" ../build.gradle
 
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