diff --git a/build.gradle b/build.gradle
index 199245e5..2233f3c1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ConfigureShadowRelocatio
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
         maven {
             url "https://plugins.gradle.org/m2/"
         }
@@ -59,7 +59,7 @@ apply from: file('gradle/ghPages.gradle')
 apply from: file('gradle/dependencies.gradle')
 
 repositories {
-    jcenter()
+    mavenCentral()
 }
 
 test {
@@ -93,7 +93,7 @@ sourceCompatibility = '1.8'
 targetCompatibility = '1.8'
 
 task downloadDependencies(type: Exec) {
-    dependsOn configurations.testRuntime
+    dependsOn configurations.testRuntimeClasspath
     commandLine 'echo', 'Downloaded all dependencies'
 }
 
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index 68e1c240..99bf70df 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -3,7 +3,7 @@ import org.codehaus.groovy.control.CompilerConfiguration
 apply plugin: 'groovy'
 
 repositories {
-    jcenter()
+    mavenCentral()
 }
 
 ScriptHolder holder = new ScriptHolder()
diff --git a/src/main/groovy/com/github/jengelman/gradle/plugins/shadow/ShadowJavaPlugin.groovy b/src/main/groovy/com/github/jengelman/gradle/plugins/shadow/ShadowJavaPlugin.groovy
index 8ccbb8f1..67068370 100644
--- a/src/main/groovy/com/github/jengelman/gradle/plugins/shadow/ShadowJavaPlugin.groovy
+++ b/src/main/groovy/com/github/jengelman/gradle/plugins/shadow/ShadowJavaPlugin.groovy
@@ -4,14 +4,11 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import org.gradle.api.Action
 import org.gradle.api.Plugin
 import org.gradle.api.Project
-import org.gradle.api.artifacts.maven.Conf2ScopeMappingContainer
-import org.gradle.api.artifacts.maven.MavenPom
 import org.gradle.api.attributes.Bundling
 import org.gradle.api.attributes.Category
 import org.gradle.api.attributes.LibraryElements
 import org.gradle.api.attributes.Usage
 import org.gradle.api.plugins.JavaPluginConvention
-import org.gradle.api.plugins.MavenPlugin
 import org.gradle.api.tasks.Upload
 import org.gradle.configuration.project.ProjectConfigurationActionContainer
 import org.gradle.util.GradleVersion
@@ -104,14 +101,16 @@ class ShadowJavaPlugin implements Plugin<Project> {
                             return
                         }
                         upload.configuration = project.configurations.shadow
-                        MavenPom pom = upload.repositories.mavenDeployer.pom
+                        def pom = upload.repositories.mavenDeployer.pom
                         if (project.configurations.findByName("api")) {
                             pom.scopeMappings.mappings.remove(project.configurations.api)
                         }
                         pom.scopeMappings.mappings.remove(project.configurations.compile)
                         pom.scopeMappings.mappings.remove(project.configurations.implementation)
                         pom.scopeMappings.mappings.remove(project.configurations.runtime)
-                        pom.scopeMappings.addMapping(MavenPlugin.RUNTIME_PRIORITY, project.configurations.shadow, Conf2ScopeMappingContainer.RUNTIME)
+                        pom.scopeMappings.addMapping(org.gradle.api.plugins.MavenPlugin.RUNTIME_PRIORITY,
+                                project.configurations.shadow,
+                                org.gradle.api.artifacts.maven.Conf2ScopeMappingContainer.RUNTIME)
                     }
                 }
             }