diff --git a/build.gradle.kts b/build.gradle.kts
index 177083be3..f18d0f90b 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ import java.util.Properties
 
 
 plugins {
-    kotlin("jvm") version "1.8.21"
+    kotlin("jvm") version "1.9.0"
     java
     `maven-publish`
     jacoco
@@ -31,7 +31,7 @@ repositories {
 val r8 = configurations.create("r8")
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-stdlib:1.8.0")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib:1.9.0")
 
     testImplementation("org.junit.jupiter:junit-jupiter:5.7.1")
     testCompileOnly("junit:junit:4.13")
@@ -100,6 +100,7 @@ tasks {
     }
 
     shadowJar {
+        (sourceSets.main.get().resources)
         relocate("kotlin", "com.amazon.ion_.shaded.kotlin")
         minimize()
     }