diff --git a/docs/quick-start-guide.md b/docs/quick-start-guide.md
index e57105ec..25a55be7 100644
--- a/docs/quick-start-guide.md
+++ b/docs/quick-start-guide.md
@@ -60,7 +60,7 @@ Here's what the `pom.xml` looks like for this example:
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <kotlin.version>1.4.0</kotlin.version>
+        <kotlin.version>1.8.0</kotlin.version>
         <kotlin.code.style>official</kotlin.code.style>
     </properties>
 
@@ -73,7 +73,7 @@ Here's what the `pom.xml` looks like for this example:
         <dependency> <!-- Kotlin Spark API dependency -->
             <groupId>org.jetbrains.kotlinx.spark</groupId>
             <artifactId>kotlin-spark-api_3.3.1_2.13</artifactId>
-            <version>1.2.2</version>
+            <version>1.2.3</version>
         </dependency>
         <dependency> <!-- Spark dependency -->
             <groupId>org.apache.spark</groupId>
@@ -161,9 +161,9 @@ repositories {
 
 dependencies {
   // Kotlin stdlib
-  implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.4.0'
+  implementation 'org.jetbrains.kotlin:kotlin-stdlib:1.8.0'
   // Kotlin Spark API
-  implementation 'org.jetbrains.kotlinx.spark:kotlin-spark-api_3.3.1_2.13:1.2.2'  // Apache Spark
+  implementation 'org.jetbrains.kotlinx.spark:kotlin-spark-api_3.3.1_2.13:1.2.3'  // Apache Spark
   compileOnly 'org.apache.spark:spark-sql_2.12:3.3.1'
 }
 
@@ -186,7 +186,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-  id ("org.jetbrains.kotlin.jvm") version "1.4.0"
+  id ("org.jetbrains.kotlin.jvm") version "1.8.0"
   id ("com.github.johnrengelman.shadow") version "5.2.0"
 }
 
@@ -198,7 +198,7 @@ dependencies {
   // Kotlin stdlib
   implementation ("org.jetbrains.kotlin:kotlin-stdlib:1.4.0")
   // Kotlin Spark API
-  implementation ("org.jetbrains.kotlinx.spark:kotlin-spark-api_3.3.1_2.13:1.2.2")
+  implementation ("org.jetbrains.kotlinx.spark:kotlin-spark-api_3.3.1_2.13:1.2.3")
   // Apache Spark
   compileOnly ("org.apache.spark:spark-sql_2.12:3.3.1")
 }