diff --git a/bom/application/pom.xml b/bom/application/pom.xml
index e1f1151f5da973..0cf530996a247b 100644
--- a/bom/application/pom.xml
+++ b/bom/application/pom.xml
@@ -159,7 +159,7 @@
         <aws-xray.version>2.15.3</aws-xray.version>
         <azure-functions-java-library.version>3.1.0</azure-functions-java-library.version>
         <azure-functions-java-spi.version>1.0.0</azure-functions-java-spi.version>
-        <kotlin.version>1.9.23</kotlin.version>
+        <kotlin.version>2.0.0</kotlin.version>
         <kotlin.coroutine.version>1.8.1</kotlin.coroutine.version>
         <azure.toolkit-lib.version>0.27.0</azure.toolkit-lib.version>
         <kotlin-serialization.version>1.6.2</kotlin-serialization.version>
diff --git a/build-parent/pom.xml b/build-parent/pom.xml
index 24ea4aae8d7f5e..4b6bf88995ec4d 100644
--- a/build-parent/pom.xml
+++ b/build-parent/pom.xml
@@ -20,7 +20,7 @@
 
         <!-- These properties are needed in order for them to be resolvable by the generated projects -->
         <compiler-plugin.version>3.12.1</compiler-plugin.version>
-        <kotlin.version>1.9.23</kotlin.version>
+        <kotlin.version>2.0.0</kotlin.version>
         <dokka.version>1.9.20</dokka.version>
         <scala.version>2.13.12</scala.version>
         <scala-maven-plugin.version>4.9.1</scala-maven-plugin.version>
diff --git a/devtools/gradle/gradle/libs.versions.toml b/devtools/gradle/gradle/libs.versions.toml
index c320a4e60e5040..6e3bf9cd2bf8ed 100644
--- a/devtools/gradle/gradle/libs.versions.toml
+++ b/devtools/gradle/gradle/libs.versions.toml
@@ -2,7 +2,7 @@
 plugin-publish = "1.2.1"
 
 # updating Kotlin here makes QuarkusPluginTest > shouldNotFailOnProjectDependenciesWithoutMain(Path) fail
-kotlin = "1.9.24"
+kotlin = "2.0.0"
 smallrye-config = "3.7.1"
 
 junit5 = "5.10.2"
diff --git a/extensions/schema-registry/confluent/pom.xml b/extensions/schema-registry/confluent/pom.xml
index 7f8cec8d484b10..516620a70ededa 100644
--- a/extensions/schema-registry/confluent/pom.xml
+++ b/extensions/schema-registry/confluent/pom.xml
@@ -25,7 +25,7 @@
             <dependency>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-scripting-compiler-embeddable</artifactId>
-                <version>1.9.23</version>
+                <version>2.0.0</version>
             </dependency>
             <dependency>
                 <groupId>org.json</groupId>
diff --git a/integration-tests/hibernate-reactive-panache-kotlin/src/main/kotlin/io/quarkus/it/panache/reactive/kotlin/TestEndpoint.kt b/integration-tests/hibernate-reactive-panache-kotlin/src/main/kotlin/io/quarkus/it/panache/reactive/kotlin/TestEndpoint.kt
index b7dfab5f4fc984..1dfba080f5150b 100644
--- a/integration-tests/hibernate-reactive-panache-kotlin/src/main/kotlin/io/quarkus/it/panache/reactive/kotlin/TestEndpoint.kt
+++ b/integration-tests/hibernate-reactive-panache-kotlin/src/main/kotlin/io/quarkus/it/panache/reactive/kotlin/TestEndpoint.kt
@@ -1263,8 +1263,8 @@ class TestEndpoint {
             .onItem()
             .invoke { _ -> Assertions.fail("Did not throw " + exceptionClass.name) }
             .onFailure(exceptionClass)
-            .recoverWithItem { null }
-            .map { null }
+            .recoverWithItem { -> null }
+            .map { it: Any? -> null }
     }
 
     private fun testPersist(persistsTest: PersistTest): Uni<Void> {
diff --git a/integration-tests/kafka-json-schema-apicurio2/pom.xml b/integration-tests/kafka-json-schema-apicurio2/pom.xml
index 1637a013475025..dd0a1dc8d22ab0 100644
--- a/integration-tests/kafka-json-schema-apicurio2/pom.xml
+++ b/integration-tests/kafka-json-schema-apicurio2/pom.xml
@@ -23,7 +23,7 @@
             <dependency>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-scripting-compiler-embeddable</artifactId>
-                <version>1.9.23</version>
+                <version>2.0.0</version>
             </dependency>
             <dependency>
                 <groupId>org.json</groupId>