diff --git a/gradle/buildscript.gradle b/gradle/buildscript.gradle
index e11039ba9b..b557098514 100644
--- a/gradle/buildscript.gradle
+++ b/gradle/buildscript.gradle
@@ -19,10 +19,15 @@
 repositories {
   repositories {
     // For plugins listed below
-    maven {
-      url "https://plugins.gradle.org/m2/"
-    }
-    jcenter()
+    gradlePluginPortal()
+  }
+}
+
+configurations.classpath {
+  resolutionStrategy.dependencySubstitution {
+    substitute(module("com.burgstaller:okhttp-digest"))
+            .using(module("io.github.rburgst:okhttp-digest:1.21"))
+            .because('JCenter Shutdown - okhttp-digest 1.21 the minimum version available in Maven Central, but under the io.github.rburgst group')
   }
 }
 
@@ -30,4 +35,9 @@ dependencies {
   classpath 'de.obqo.gradle:gradle-lesscss-plugin:1.0-1.3.3'
   classpath 'com.bmuschko:gradle-nexus-plugin:2.3.1'
   classpath 'com.github.jruby-gradle:jruby-gradle-plugin:2.0.2'
+  constraints {
+    classpath('org.ysb33r.gradle:grolifant:0.12.1') {
+      because 'JCenter Shutdown - grolifant 0.12.1 the minimum version available in Maven Central'
+    }
+  }
 }