diff --git a/codeSnippets/gradle.properties b/codeSnippets/gradle.properties
index 132af5ad6..f55ff051a 100644
--- a/codeSnippets/gradle.properties
+++ b/codeSnippets/gradle.properties
@@ -5,7 +5,7 @@ kotlin.native.binary.memoryModel = experimental
 # gradle configuration
 org.gradle.configureondemand = false
 # versions
-kotlin_version = 2.0.0
+kotlin_version = 2.1.0-saturn-419
 ktor_version = 2.3.12
 kotlinx_coroutines_version = 2.0.0
 kotlinx_serialization_version = 2.0.0
diff --git a/codeSnippets/snippets/auth-jwt-hs256/build.gradle.kts b/codeSnippets/snippets/auth-jwt-hs256/build.gradle.kts
index 691cee616..221afc9e7 100644
--- a/codeSnippets/snippets/auth-jwt-hs256/build.gradle.kts
+++ b/codeSnippets/snippets/auth-jwt-hs256/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/auth-jwt-rs256/build.gradle.kts b/codeSnippets/snippets/auth-jwt-rs256/build.gradle.kts
index b7686cbfe..cd594c446 100644
--- a/codeSnippets/snippets/auth-jwt-rs256/build.gradle.kts
+++ b/codeSnippets/snippets/auth-jwt-rs256/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/auth-oauth-google/build.gradle.kts b/codeSnippets/snippets/auth-oauth-google/build.gradle.kts
index 243034f5f..ff269cfc0 100644
--- a/codeSnippets/snippets/auth-oauth-google/build.gradle.kts
+++ b/codeSnippets/snippets/auth-oauth-google/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-auth-oauth-google/build.gradle.kts b/codeSnippets/snippets/client-auth-oauth-google/build.gradle.kts
index 12c7dbdd1..356c5d136 100644
--- a/codeSnippets/snippets/client-auth-oauth-google/build.gradle.kts
+++ b/codeSnippets/snippets/client-auth-oauth-google/build.gradle.kts
@@ -6,7 +6,7 @@ val hamcrest_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-engine-js/build.gradle.kts b/codeSnippets/snippets/client-engine-js/build.gradle.kts
index 5251dfe62..88e5a2409 100644
--- a/codeSnippets/snippets/client-engine-js/build.gradle.kts
+++ b/codeSnippets/snippets/client-engine-js/build.gradle.kts
@@ -3,7 +3,7 @@ val kotlinx_html_version: String by project
 
 plugins {
     kotlin("js")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 repositories {
diff --git a/codeSnippets/snippets/client-json-kotlinx/build.gradle.kts b/codeSnippets/snippets/client-json-kotlinx/build.gradle.kts
index be576dd21..fb7e6766f 100644
--- a/codeSnippets/snippets/client-json-kotlinx/build.gradle.kts
+++ b/codeSnippets/snippets/client-json-kotlinx/build.gradle.kts
@@ -6,7 +6,7 @@ val hamcrest_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-testing-mock/build.gradle.kts b/codeSnippets/snippets/client-testing-mock/build.gradle.kts
index 2d48eb17a..2b0294eda 100644
--- a/codeSnippets/snippets/client-testing-mock/build.gradle.kts
+++ b/codeSnippets/snippets/client-testing-mock/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-type-safe-requests/build.gradle.kts b/codeSnippets/snippets/client-type-safe-requests/build.gradle.kts
index 7c6c85ca4..a1c74efa5 100644
--- a/codeSnippets/snippets/client-type-safe-requests/build.gradle.kts
+++ b/codeSnippets/snippets/client-type-safe-requests/build.gradle.kts
@@ -6,7 +6,7 @@ val hamcrest_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-validate-2xx-response/build.gradle.kts b/codeSnippets/snippets/client-validate-2xx-response/build.gradle.kts
index 994e9324f..e9617c67c 100644
--- a/codeSnippets/snippets/client-validate-2xx-response/build.gradle.kts
+++ b/codeSnippets/snippets/client-validate-2xx-response/build.gradle.kts
@@ -6,7 +6,7 @@ val hamcrest_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/client-websockets-serialization/build.gradle.kts b/codeSnippets/snippets/client-websockets-serialization/build.gradle.kts
index 5cc1015cc..748fe6fbb 100644
--- a/codeSnippets/snippets/client-websockets-serialization/build.gradle.kts
+++ b/codeSnippets/snippets/client-websockets-serialization/build.gradle.kts
@@ -6,7 +6,7 @@ val hamcrest_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/cors/build.gradle.kts b/codeSnippets/snippets/cors/build.gradle.kts
index a7047c150..d5f214b22 100644
--- a/codeSnippets/snippets/cors/build.gradle.kts
+++ b/codeSnippets/snippets/cors/build.gradle.kts
@@ -6,7 +6,7 @@ val junit_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/json-kotlinx-method-override/build.gradle.kts b/codeSnippets/snippets/json-kotlinx-method-override/build.gradle.kts
index 9ea3800bc..2e4de54d1 100644
--- a/codeSnippets/snippets/json-kotlinx-method-override/build.gradle.kts
+++ b/codeSnippets/snippets/json-kotlinx-method-override/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/json-kotlinx-openapi/build.gradle.kts b/codeSnippets/snippets/json-kotlinx-openapi/build.gradle.kts
index 7408028ed..72950779f 100644
--- a/codeSnippets/snippets/json-kotlinx-openapi/build.gradle.kts
+++ b/codeSnippets/snippets/json-kotlinx-openapi/build.gradle.kts
@@ -6,7 +6,7 @@ val swagger_codegen_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/json-kotlinx/build.gradle.kts b/codeSnippets/snippets/json-kotlinx/build.gradle.kts
index 55936788b..900b4ffda 100644
--- a/codeSnippets/snippets/json-kotlinx/build.gradle.kts
+++ b/codeSnippets/snippets/json-kotlinx/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/1_hello/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/1_hello/build.gradle.kts
index 96ab4867c..6d9ae513b 100644
--- a/codeSnippets/snippets/migrating-express-ktor/1_hello/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/1_hello/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 group = "com.example"
diff --git a/codeSnippets/snippets/migrating-express-ktor/1_hello_config/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/1_hello_config/build.gradle.kts
index 326c9fc61..6b50097ad 100644
--- a/codeSnippets/snippets/migrating-express-ktor/1_hello_config/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/1_hello_config/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/2_static/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/2_static/build.gradle.kts
index 326c9fc61..6b50097ad 100644
--- a/codeSnippets/snippets/migrating-express-ktor/2_static/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/2_static/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/3_router/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/3_router/build.gradle.kts
index 326c9fc61..6b50097ad 100644
--- a/codeSnippets/snippets/migrating-express-ktor/3_router/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/3_router/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/4_parameters/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/4_parameters/build.gradle.kts
index 326c9fc61..6b50097ad 100644
--- a/codeSnippets/snippets/migrating-express-ktor/4_parameters/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/4_parameters/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/5_send_response/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/5_send_response/build.gradle.kts
index e73340fcb..0b7f99cb4 100644
--- a/codeSnippets/snippets/migrating-express-ktor/5_send_response/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/5_send_response/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/6_templates/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/6_templates/build.gradle.kts
index 7f4fa0681..c2c42988d 100644
--- a/codeSnippets/snippets/migrating-express-ktor/6_templates/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/6_templates/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/7_receive_request/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/7_receive_request/build.gradle.kts
index 44057faa9..690fe78ac 100644
--- a/codeSnippets/snippets/migrating-express-ktor/7_receive_request/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/7_receive_request/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/8_middleware/build.gradle.kts b/codeSnippets/snippets/migrating-express-ktor/8_middleware/build.gradle.kts
index 326c9fc61..6b50097ad 100644
--- a/codeSnippets/snippets/migrating-express-ktor/8_middleware/build.gradle.kts
+++ b/codeSnippets/snippets/migrating-express-ktor/8_middleware/build.gradle.kts
@@ -4,7 +4,7 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/migrating-express-ktor/gradle.properties b/codeSnippets/snippets/migrating-express-ktor/gradle.properties
index 8b4ba2c79..d52719c1b 100644
--- a/codeSnippets/snippets/migrating-express-ktor/gradle.properties
+++ b/codeSnippets/snippets/migrating-express-ktor/gradle.properties
@@ -1,4 +1,4 @@
 ktor_version=2.3.12
-kotlin_version=2.0.0
+kotlin_version=2.1.0-saturn-419
 logback_version=1.5.6
 kotlin.code.style=official
diff --git a/codeSnippets/snippets/request-validation/build.gradle.kts b/codeSnippets/snippets/request-validation/build.gradle.kts
index a2210787e..948abd140 100644
--- a/codeSnippets/snippets/request-validation/build.gradle.kts
+++ b/codeSnippets/snippets/request-validation/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/resource-routing/build.gradle.kts b/codeSnippets/snippets/resource-routing/build.gradle.kts
index 1e6e4daaa..af8e8b51e 100644
--- a/codeSnippets/snippets/resource-routing/build.gradle.kts
+++ b/codeSnippets/snippets/resource-routing/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/server-websockets-serialization/build.gradle.kts b/codeSnippets/snippets/server-websockets-serialization/build.gradle.kts
index ad0db809b..f083a9565 100644
--- a/codeSnippets/snippets/server-websockets-serialization/build.gradle.kts
+++ b/codeSnippets/snippets/server-websockets-serialization/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     application
     kotlin("jvm")
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts b/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
index 41edfdfd4..96ed48eca 100644
--- a/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
+++ b/codeSnippets/snippets/server-websockets-sharedflow/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     application
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.12"
-    kotlin("plugin.serialization").version("2.0.0")
+    kotlin("plugin.serialization").version("2.0.10")
 }
 
 application {
diff --git a/codeSnippets/snippets/tutorial-client-kmm/gradle/libs.versions.toml b/codeSnippets/snippets/tutorial-client-kmm/gradle/libs.versions.toml
index 4cd697e76..6b2fe267b 100644
--- a/codeSnippets/snippets/tutorial-client-kmm/gradle/libs.versions.toml
+++ b/codeSnippets/snippets/tutorial-client-kmm/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 agp = "8.3.1"
-kotlin = "2.0.0"
+kotlin = "2.1.0-saturn-419"
 coroutines = "2.0.0"
 ktor = "2.3.12"
 compose = "1.6.8"
diff --git a/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts b/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
index fd40d27ee..24cdbe254 100644
--- a/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-kotlin-rpc-app/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
-    kotlin("jvm") version "1.9.24"
-    kotlin("plugin.serialization") version "1.9.24"
+    kotlin("jvm") version "1.9.25"
+    kotlin("plugin.serialization") version "1.9.25"
     id("io.ktor.plugin") version "2.3.12"
     id("com.google.devtools.ksp") version "1.9.24-1.0.20"
     id("org.jetbrains.kotlinx.rpc.plugin") version "0.2.1"
diff --git a/codeSnippets/snippets/tutorial-server-db-integration/build.gradle.kts b/codeSnippets/snippets/tutorial-server-db-integration/build.gradle.kts
index 6e900985a..555cd44eb 100644
--- a/codeSnippets/snippets/tutorial-server-db-integration/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-db-integration/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     application
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.12"
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.0"
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.10"
 }
 
 group = "com.example"
diff --git a/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts b/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
index 6e900985a..555cd44eb 100644
--- a/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-docker-compose/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     application
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.12"
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.0"
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.10"
 }
 
 group = "com.example"
diff --git a/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml b/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
index ad9d36db6..ac78168a6 100644
--- a/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
+++ b/codeSnippets/snippets/tutorial-server-get-started-maven/pom.xml
@@ -10,7 +10,7 @@
     <properties>
         <ktor_version>2.3.11</ktor_version>
         <kotlin.code.style>official</kotlin.code.style>
-        <kotlin_version>1.9.22</kotlin_version>
+        <kotlin_version>1.9.25</kotlin_version>
         <logback_version>1.5.6</logback_version>
         <slf4j_version>2.0.12</slf4j_version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/codeSnippets/snippets/tutorial-server-restful-api/build.gradle.kts b/codeSnippets/snippets/tutorial-server-restful-api/build.gradle.kts
index 34b3eb9c9..bc27c74f9 100644
--- a/codeSnippets/snippets/tutorial-server-restful-api/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-restful-api/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
     application
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.12"
-    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.22"
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.25"
 }
 
 application {
diff --git a/codeSnippets/snippets/tutorial-server-websockets/build.gradle.kts b/codeSnippets/snippets/tutorial-server-websockets/build.gradle.kts
index 184929981..c8208472c 100644
--- a/codeSnippets/snippets/tutorial-server-websockets/build.gradle.kts
+++ b/codeSnippets/snippets/tutorial-server-websockets/build.gradle.kts
@@ -5,7 +5,7 @@ val logback_version: String by project
 plugins {
     kotlin("jvm")
     id("io.ktor.plugin") version "2.3.12"
-    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.0"
+    id("org.jetbrains.kotlin.plugin.serialization") version "2.0.10"
 }
 
 group = "com.example"