diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index edefd2e1f73749729d5986a533abb1e25deec5b6..e595501b2a2ff17583e1b40d9aad7744b110bbb3 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -89,7 +89,7 @@ android {
 }
 
 dependencies {
-  implementation(kotlin("stdlib", "1.2.21"))
+  implementation(kotlin("stdlib", "1.2.30"))
 
   // App Compat
   withVersion("27.0.2") {
diff --git a/build.gradle.kts b/build.gradle.kts
index 8b9c2758c291a8137b36ac6fb8bcab30c0364907..8a0c5cb83d91d54564192987bece64b4ca07befe 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,8 +5,10 @@ buildscript {
   }
   dependencies {
     classpath("com.android.tools.build:gradle:3.0.1")
-    classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.21")
-    classpath("org.jetbrains.kotlin:kotlin-android-extensions:1.2.21")
+    withVersion("1.2.30") {
+      classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$version")
+      classpath("org.jetbrains.kotlin:kotlin-android-extensions:$version")
+    }
   }
 }
 
diff --git a/lib/build.gradle.kts b/lib/build.gradle.kts
index 38f2d1c3a87a9298335375fc4821a0d922f42cb1..1bb7a948b256923cca02cd9f219a5bde5bd0cfac 100644
--- a/lib/build.gradle.kts
+++ b/lib/build.gradle.kts
@@ -11,7 +11,7 @@ plugins {
 
 val appCompatVersion = "27.0.2"
 dependencies {
-  implementation(kotlin("stdlib", "1.2.21"))
+  implementation(kotlin("stdlib", "1.2.30"))
 
   implementation("com.android.support", "support-annotations", "27.0.2")
   implementation("org.threeten", "threetenbp", "1.3.6")
diff --git a/malheur/build.gradle.kts b/malheur/build.gradle.kts
index 66662a902f0cfe0378e5ed6f26facbfa70a5ffb2..474d61213e8e08415a89312cf5aa7e720bbbac00 100644
--- a/malheur/build.gradle.kts
+++ b/malheur/build.gradle.kts
@@ -17,7 +17,7 @@ android {
 }
 
 dependencies {
-  implementation(kotlin("stdlib", "1.2.21"))
+  implementation(kotlin("stdlib", "1.2.30"))
 
   implementation("com.google.code.gson", "gson", "2.8.2")
 }