diff --git a/build.gradle.kts b/build.gradle.kts
index 384f5d5..755ddb8 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,39 +1,48 @@
 plugins {
-    id("org.jetbrains.kotlin.js") version "1.3.70-eap-184"
+    kotlin("js") version "1.6.10"
+    kotlin("plugin.serialization") version "1.6.10"
 }
 
 group = "org.example"
 version = "1.0-SNAPSHOT"
 
 repositories {
-    maven { setUrl("https://dl.bintray.com/kotlin/kotlin-eap") }
-    maven("https://kotlin.bintray.com/kotlin-js-wrappers/")
     mavenCentral()
-    jcenter()
 }
 
-dependencies {
-    implementation(kotlin("stdlib-js"))
+kotlin {
+    js {
+        browser {
+            commonWebpackConfig {
+                cssSupport.enabled = true
+            }
+        }
+        binaries.executable()
+    }
+}
 
+dependencies {
     //React, React DOM + Wrappers (chapter 3)
-    implementation("org.jetbrains:kotlin-react:16.9.0-pre.89-kotlin-1.3.60")
-    implementation("org.jetbrains:kotlin-react-dom:16.9.0-pre.89-kotlin-1.3.60")
-    implementation(npm("react", "16.12.0"))
-    implementation(npm("react-dom", "16.12.0"))
+    implementation("org.jetbrains.kotlin-wrappers:kotlin-react:17.0.2-pre.297-kotlin-1.6.10")
+    implementation("org.jetbrains.kotlin-wrappers:kotlin-react-dom:17.0.2-pre.297-kotlin-1.6.10")
+    implementation(npm("react", "17.0.2"))
+    implementation(npm("react-dom", "17.0.2"))
 
-    //Kotlin Styled (chapter 3)
-    implementation("org.jetbrains:kotlin-styled:1.0.0-pre.90-kotlin-1.3.61")
-    implementation(npm("styled-components"))
-    implementation(npm("inline-style-prefixer"))
+    //Kotlin React CSS (chapter 3)
+    implementation("org.jetbrains.kotlin-wrappers:kotlin-react-css:17.0.2-pre.298-kotlin-1.6.10")
 
     //Video Player (chapter 7)
-    implementation(npm("react-player"))
+    implementation(npm("react-youtube-lite", "1.5.0"))
 
     //Share Buttons (chapter 7)
-    implementation(npm("react-share"))
+    implementation(npm("react-share", "4.4.0"))
 
-    //Coroutines (chapter 8)
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core-common:1.3.3")
+    //Coroutines & serialization (chapter 8)
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2")
 }
 
-kotlin.target.browser { }
\ No newline at end of file
+// Heroku Deployment (chapter 9)
+tasks.register("stage") {
+    dependsOn("build")
+}
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ba94df8..41dfb87 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/settings.gradle.kts b/settings.gradle.kts
index b230161..97dac63 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,11 +1,3 @@
-pluginManagement {
-    repositories {
-        maven { setUrl("https://dl.bintray.com/kotlin/kotlin-eap") }
 
-        mavenCentral()
-
-        maven { setUrl("https://plugins.gradle.org/m2/") }
-    }
-}
 rootProject.name = "confexplorer"
 
diff --git a/src/main/kotlin/Main.kt b/src/main/kotlin/Main.kt
index efa3a07..17951e7 100644
--- a/src/main/kotlin/Main.kt
+++ b/src/main/kotlin/Main.kt
@@ -1,5 +1,5 @@
-import kotlin.browser.document
+import kotlinx.browser.document
 
 fun main() {
-    document.bgColor = "blue"
+    document.bgColor = "red"
 }
\ No newline at end of file