diff --git a/src/main/groovy/com/bancvue/gradle/support/ClearArtifactCache.groovy b/src/main/groovy/com/bancvue/gradle/support/ClearArtifactCache.groovy
index 69b4f73..81a7a3b 100644
--- a/src/main/groovy/com/bancvue/gradle/support/ClearArtifactCache.groovy
+++ b/src/main/groovy/com/bancvue/gradle/support/ClearArtifactCache.groovy
@@ -22,6 +22,7 @@ import org.gradle.api.tasks.TaskAction
 class ClearArtifactCache extends DefaultTask {
 
 	String groupName
+	File userHome = getDefaultUserHome()
 
 	void setGroupName(String groupName) {
 		this.groupName = groupName
@@ -33,6 +34,7 @@ class ClearArtifactCache extends DefaultTask {
 		assertGroupNameSet()
 		clearMavenCache()
 		clearGradleCache()
+		clearGroovyGrapeCache()
 	}
 
 	private void assertGroupNameSet() {
@@ -43,10 +45,10 @@ class ClearArtifactCache extends DefaultTask {
 
 	private void clearMavenCache() {
 		String cachePath = groupName.replaceAll(/\./, '/')
-		project.delete new File(getUserHome(), ".m2/repository/${cachePath}")
+		project.delete new File(userHome, ".m2/repository/${cachePath}")
 	}
 
-	private static File getUserHome() {
+	private static File getDefaultUserHome() {
 		String userHome = System.getProperty("user.home")
 		new File(userHome)
 	}
@@ -106,4 +108,7 @@ class ClearArtifactCache extends DefaultTask {
 		}
 	}
 
+	private void clearGroovyGrapeCache() {
+		project.delete new File(userHome, ".groovy/grapes/${groupName}")
+	}
 }
diff --git a/src/mainTest/groovy/com/bancvue/gradle/test/AbstractProjectSpecification.groovy b/src/mainTest/groovy/com/bancvue/gradle/test/AbstractProjectSpecification.groovy
index e05233d..202a8db 100644
--- a/src/mainTest/groovy/com/bancvue/gradle/test/AbstractProjectSpecification.groovy
+++ b/src/mainTest/groovy/com/bancvue/gradle/test/AbstractProjectSpecification.groovy
@@ -19,12 +19,14 @@ import org.gradle.api.Project
 import org.gradle.testfixtures.ProjectBuilder
 import org.junit.Rule
 import org.junit.rules.TemporaryFolder
+import spock.lang.Shared
 import spock.lang.Specification
 
 abstract class AbstractProjectSpecification extends Specification {
 
     @Rule
     public TemporaryFolder projectDir = new TemporaryFolder()
+	@Shared
     protected Project project
     protected ProjectFileSystem projectFS
 
diff --git a/src/test/groovy/com/bancvue/gradle/support/ClearArtifactCacheSpecification.groovy b/src/test/groovy/com/bancvue/gradle/support/ClearArtifactCacheSpecification.groovy
index 73e2cb0..a5e3c70 100644
--- a/src/test/groovy/com/bancvue/gradle/support/ClearArtifactCacheSpecification.groovy
+++ b/src/test/groovy/com/bancvue/gradle/support/ClearArtifactCacheSpecification.groovy
@@ -20,6 +20,7 @@ import com.bancvue.gradle.test.AbstractProjectSpecification
 import com.google.common.io.Files
 import org.gradle.api.GradleException
 import org.gradle.api.tasks.TaskExecutionException
+import spock.lang.Unroll
 
 @Mixin(ExceptionSupport)
 class ClearArtifactCacheSpecification extends AbstractProjectSpecification {
@@ -85,6 +86,27 @@ class ClearArtifactCacheSpecification extends AbstractProjectSpecification {
 		expect:
 		ClearArtifactCache.collectGradleCacheDirsWithName(tempDir, "com.bancvue") == [new File(cacheDir, "com.bancvue")]
 	}
+	
+	@Unroll("clearArtifactCache should clear #cacheDirParentPath")
+	def "clearArtifactCache should clear all caches"() {
+		given:
+		clearArtifactCacheTask.userHome = tempDir
+		clearArtifactCacheTask.groupName = 'com.bancvue'
+		File cacheDir = new File(tempDir, cacheDirParentPath)
+		createDirs(cacheDir, caches)
+
+		when:
+		clearArtifactCacheTask.clearArtifactCache()
+		
+		then:
+		!new File(tempDir, cachePath).exists()
+		
+		where:
+		cacheDirParentPath                                 | caches                                     | cachePath
+		".groovy/grapes"                                   | ["com.bancvue"]                            | ".groovy/grapes/com.bancvue"
+		".m2/repository"                                   | ["com/bancvue"]                            | ".m2/repository/com/bancvue"
+		project.gradle.gradleUserHomeDir.absolutePath      | ["caches/modules-2/files-2.1/com.bancvue"] | ".gradle/caches/modules-2/files-2.1/com.bancvue"
+	}
 
 	private void createDirs(File parent, List<String> dirNames) {
 		dirNames.each { String dirName ->