diff --git a/detekt-gradle-plugin/api/detekt-gradle-plugin.api b/detekt-gradle-plugin/api/detekt-gradle-plugin.api
index eeb2a59e8553..f0831a05ebde 100644
--- a/detekt-gradle-plugin/api/detekt-gradle-plugin.api
+++ b/detekt-gradle-plugin/api/detekt-gradle-plugin.api
@@ -130,7 +130,6 @@ public abstract interface class io/gitlab/arturbosch/detekt/extensions/DetektExt
 	public abstract fun getIgnoredVariants ()Lorg/gradle/api/provider/ListProperty;
 	public abstract fun getParallel ()Lorg/gradle/api/provider/Property;
 	public abstract fun getReportsDir ()Lorg/gradle/api/file/DirectoryProperty;
-	public abstract fun getSource ()Lorg/gradle/api/file/ConfigurableFileCollection;
 	public abstract fun getToolVersion ()Lorg/gradle/api/provider/Property;
 }
 
diff --git a/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskGroovyDslSpec.kt b/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskGroovyDslSpec.kt
index f7998d217621..f5ce1e57f181 100644
--- a/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskGroovyDslSpec.kt
+++ b/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskGroovyDslSpec.kt
@@ -14,7 +14,6 @@ class DetektTaskGroovyDslSpec {
                 toolVersion = "1.0.0.RC8"
                 ignoreFailures = true
                 failOnSeverity = io.gitlab.arturbosch.detekt.extensions.FailOnSeverity.Info
-                source.setFrom(file("src/main/kotlin"))
                 baseline = file("path/to/baseline.xml")
                 basePath = projectDir
                 config.setFrom("config/detekt/detekt.yml")
diff --git a/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskMultiModuleSpec.kt b/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskMultiModuleSpec.kt
index 7317a5442e81..676f62e46a8e 100644
--- a/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskMultiModuleSpec.kt
+++ b/detekt-gradle-plugin/src/functionalTest/kotlin/io/gitlab/arturbosch/detekt/DetektTaskMultiModuleSpec.kt
@@ -192,18 +192,8 @@ class DetektTaskMultiModuleSpec {
             addSubmodule("child2", 4)
         }
 
-        val detektConfig: String = """
-            detekt {
-                source.setFrom(
-                   "${"$"}projectDir/src",
-                   "${"$"}projectDir/child1/src",
-                   "${"$"}projectDir/child2/src"
-                )
-            }
-        """.trimIndent()
         val gradleRunner = DslTestBuilder.kotlin()
             .withProjectLayout(projectLayout)
-            .withDetektConfig(detektConfig)
             .build()
 
         gradleRunner.runDetektTaskAndCheckResult { result ->
diff --git a/detekt-gradle-plugin/src/main/kotlin/dev/detekt/gradle/plugin/DetektBasePlugin.kt b/detekt-gradle-plugin/src/main/kotlin/dev/detekt/gradle/plugin/DetektBasePlugin.kt
index 3a05e55af593..d43773bf12bd 100644
--- a/detekt-gradle-plugin/src/main/kotlin/dev/detekt/gradle/plugin/DetektBasePlugin.kt
+++ b/detekt-gradle-plugin/src/main/kotlin/dev/detekt/gradle/plugin/DetektBasePlugin.kt
@@ -28,12 +28,6 @@ class DetektBasePlugin : Plugin<Project> {
             toolVersion.convention(loadDetektVersion(DetektExtension::class.java.classLoader))
             ignoreFailures.convention(DEFAULT_IGNORE_FAILURES)
             failOnSeverity.convention(DEFAULT_FAIL_ON_SEVERITY)
-            source.setFrom(
-                DEFAULT_SRC_DIR_JAVA,
-                DEFAULT_TEST_SRC_DIR_JAVA,
-                DEFAULT_SRC_DIR_KOTLIN,
-                DEFAULT_TEST_SRC_DIR_KOTLIN,
-            )
             baseline.convention(project.layout.projectDirectory.file("detekt-baseline.xml"))
             enableCompilerPlugin.convention(DEFAULT_COMPILER_PLUGIN_ENABLED)
             debug.convention(DEFAULT_DEBUG_VALUE)
@@ -114,10 +108,6 @@ class DetektBasePlugin : Plugin<Project> {
         internal const val CONFIG_DIR_NAME = "config/detekt"
         internal const val CONFIG_FILE = "detekt.yml"
 
-        private const val DEFAULT_SRC_DIR_JAVA = "src/main/java"
-        private const val DEFAULT_TEST_SRC_DIR_JAVA = "src/test/java"
-        private const val DEFAULT_SRC_DIR_KOTLIN = "src/main/kotlin"
-        private const val DEFAULT_TEST_SRC_DIR_KOTLIN = "src/test/kotlin"
         private const val DEFAULT_DEBUG_VALUE = false
         private const val DEFAULT_IGNORE_FAILURES = false
         private val DEFAULT_FAIL_ON_SEVERITY = FailOnSeverity.Error
diff --git a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/extensions/DetektExtension.kt b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/extensions/DetektExtension.kt
index 7bbbb8b51b01..1a29ba0decb9 100644
--- a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/extensions/DetektExtension.kt
+++ b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/extensions/DetektExtension.kt
@@ -20,8 +20,6 @@ interface DetektExtension {
 
     val reportsDir: DirectoryProperty
 
-    val source: ConfigurableFileCollection
-
     val baseline: RegularFileProperty
 
     val basePath: DirectoryProperty