diff --git a/buildSrc/src/main/kotlin/Libs.kt b/buildSrc/src/main/kotlin/Libs.kt
index e95e40c38..2cbba589f 100644
--- a/buildSrc/src/main/kotlin/Libs.kt
+++ b/buildSrc/src/main/kotlin/Libs.kt
@@ -84,24 +84,6 @@ object Libs {
    */
   const val okhttp: String = "com.squareup.okhttp3:okhttp:" + Versions.com_squareup_okhttp3
 
-  /**
-   * https://kotlinlang.org/
-   */
-  const val kotlin_android_extensions: String = "org.jetbrains.kotlin:kotlin-android-extensions:" +
-    Versions.org_jetbrains_kotlin
-
-  /**
-   * https://kotlinlang.org/
-   */
-  const val kotlin_android_extensions_runtime: String =
-    "org.jetbrains.kotlin:kotlin-android-extensions-runtime:" + Versions.org_jetbrains_kotlin
-
-  /**
-   * https://kotlinlang.org/
-   */
-  const val kotlin_annotation_processing_gradle: String =
-    "org.jetbrains.kotlin:kotlin-annotation-processing-gradle:" + Versions.org_jetbrains_kotlin
-
   /**
    * https://kotlinlang.org/
    */
@@ -199,53 +181,22 @@ object Libs {
    */
   const val androidx_test_runner: String = "androidx.test:runner:" + Versions.androidx_test
 
-  /**
-   * https://objectbox.io
-   */
-  const val objectbox_android: String = "io.objectbox:objectbox-android:" + Versions.io_objectbox
-
   /**
    * https://objectbox.io
    */
   const val objectbox_gradle_plugin: String = "io.objectbox:objectbox-gradle-plugin:" +
     Versions.io_objectbox
 
-  /**
-   * https://objectbox.io
-   */
-  const val objectbox_java: String = "io.objectbox:objectbox-java:" + Versions.io_objectbox
-
   /**
    * https://objectbox.io
    */
   const val objectbox_kotlin: String = "io.objectbox:objectbox-kotlin:" + Versions.io_objectbox
 
-  /**
-   * https://objectbox.io
-   */
-  const val objectbox_processor: String = "io.objectbox:objectbox-processor:" +
-    Versions.io_objectbox
-
   /**
    * https://objectbox.io
    */
   const val objectbox_rxjava: String = "io.objectbox:objectbox-rxjava:" + Versions.io_objectbox
 
-  /**
-   * https://objectbox.io
-   */
-  const val objectbox_windows: String = "io.objectbox:objectbox-windows:" + Versions.io_objectbox
-
-  /**
-   * http://jacoco.org
-   */
-  const val org_jacoco_agent: String = "org.jacoco:org.jacoco.agent:" + Versions.org_jacoco
-
-  /**
-   * http://jacoco.org
-   */
-  const val org_jacoco_ant: String = "org.jacoco:org.jacoco.ant:" + Versions.org_jacoco
-
   /**
    * http://mockk.io
    */
@@ -268,14 +219,6 @@ object Libs {
   const val com_android_tools_build_gradle: String = "com.android.tools.build:gradle:" +
     Versions.com_android_tools_build_gradle
 
-  const val de_fayard_buildsrcversions_gradle_plugin: String =
-    "de.fayard.buildSrcVersions:de.fayard.buildSrcVersions.gradle.plugin:" +
-      Versions.de_fayard_buildsrcversions_gradle_plugin
-
-  const val com_github_triplet_play_gradle_plugin: String =
-    "com.github.triplet.play:com.github.triplet.play.gradle.plugin:" +
-      Versions.com_github_triplet_play_gradle_plugin
-
   /**
    * http://jcp.org/en/jsr/detail?id=250
    */
@@ -331,11 +274,6 @@ object Libs {
    */
   const val fragment_ktx: String = "androidx.fragment:fragment-ktx:" + Versions.fragment_ktx
 
-  /**
-   * https://developer.android.com/studio
-   */
-  const val lint_gradle: String = "com.android.tools.lint:lint-gradle:" + Versions.lint_gradle
-
   /**
    * https://github.com/jraska/livedata-testing
    */
@@ -392,16 +330,6 @@ object Libs {
 
   const val fetch: String = "com.github.tonyofrancis:fetch:" + Versions.fetch
 
-  /**
-   * http://findbugs.sourceforge.net/
-   */
-  const val jsr305: String = "com.google.code.findbugs:jsr305:" + Versions.jsr305
-
-  /**
-   * https://github.com/pinterest/ktlint
-   */
-  const val ktlint: String = "com.pinterest:ktlint:" + Versions.ktlint
-
   /**
    * https://github.com/ReactiveX/RxJava
    */
@@ -412,11 +340,6 @@ object Libs {
    */
   const val webkit: String = "androidx.webkit:webkit:" + Versions.webkit
 
-  /**
-   * https://developer.android.com/studio
-   */
-  const val aapt2: String = "com.android.tools.build:aapt2:" + Versions.aapt2
-
   /**
    * https://developer.android.com/testing
    */
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index f5d25f5dc..7d59b469a 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -42,8 +42,6 @@ object Versions {
 
   const val io_objectbox: String = "3.5.0"
 
-  const val org_jacoco: String = "0.8.7"
-
   const val io_mockk: String = "1.12.0"
 
   const val android_arch_lifecycle_extensions: String = "1.1.1"
@@ -74,8 +72,6 @@ object Versions {
 
   const val fragment_ktx: String = "1.2.5"
 
-  const val lint_gradle: String = "27.1.1"
-
   const val testing_ktx: String = "1.2.0"
 
   const val threetenabp: String = "1.3.0"
@@ -102,24 +98,11 @@ object Versions {
 
   const val fetch: String = "3.1.6"
 
-  const val jsr305: String = "3.0.2"
-
-  const val ktlint: String = "0.39.0"
-
   const val rxjava: String = "2.2.20"
 
   const val webkit: String = "1.3.0"
 
-  const val aapt2: String = "4.1.1-6503028"
-
   const val junit: String = "1.1.4"
-
-  /**
-   * Current version: "6.2"
-   * See issue 19: How to update Gradle itself?
-   * https://github.com/jmfayard/buildSrcVersions/issues/19
-   */
-  const val gradleLatestVersion: String = "6.7.1"
 }
 
 /**