diff --git a/chat/build.gradle b/chat/build.gradle
index 3d3db71c..e3600708 100644
--- a/chat/build.gradle
+++ b/chat/build.gradle
@@ -3,7 +3,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.21"
     }
 }
 
@@ -28,14 +28,14 @@ kotlin {
 
     sourceSets.each {
         it.dependencies {
-            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.6"))
+            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.7"))
         }
     }
 
     sourceSets {
         backendMain {
             dependencies {
-                implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10"
+                implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.21"
                 implementation "io.ktor:ktor-server-netty"
                 implementation "io.ktor:ktor-server-websockets"
                 implementation "io.ktor:ktor-server-call-logging"
diff --git a/client-mpp/build.gradle b/client-mpp/build.gradle
index efbf109e..9d94b77a 100644
--- a/client-mpp/build.gradle
+++ b/client-mpp/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         gradlePluginPortal()
     }
     dependencies {
-        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.21")
         classpath("com.android.tools.build:gradle:7.0.4")
     }
 }
diff --git a/client-mpp/shared/build.gradle b/client-mpp/shared/build.gradle
index 39e357ab..61355b2a 100644
--- a/client-mpp/shared/build.gradle
+++ b/client-mpp/shared/build.gradle
@@ -19,7 +19,7 @@ kotlin {
 
     sourceSets.each {
         it.dependencies {
-            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.6"))
+            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.7"))
         }
     }
 
diff --git a/client-multipart/build.gradle b/client-multipart/build.gradle
index 73023102..9320c049 100644
--- a/client-multipart/build.gradle
+++ b/client-multipart/build.gradle
@@ -4,8 +4,8 @@ buildscript {
         gradlePluginPortal()
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10"
-        classpath "io.ktor.plugin:plugin:2.3.6"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.21"
+        classpath "io.ktor.plugin:plugin:2.3.7"
     }
 }
 
@@ -27,7 +27,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.21'
     implementation "io.ktor:ktor-server-html-builder"
     implementation 'ch.qos.logback:logback-classic:1.4.6'
     implementation 'io.ktor:ktor-server-netty-jvm'
diff --git a/client-tools/build.gradle b/client-tools/build.gradle
index da5d40f3..bc497a14 100644
--- a/client-tools/build.gradle
+++ b/client-tools/build.gradle
@@ -4,8 +4,8 @@ buildscript {
         gradlePluginPortal()
     }
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10"
-        classpath "io.ktor.plugin:plugin:2.3.6"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.21"
+        classpath "io.ktor.plugin:plugin:2.3.7"
     }
 }
 
@@ -27,7 +27,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.10'
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.21'
     implementation "io.ktor:ktor-server-html-builder"
     implementation 'ch.qos.logback:logback-classic:1.4.6'
     implementation 'io.ktor:ktor-server-netty-jvm'
diff --git a/di-kodein/build.gradle.kts b/di-kodein/build.gradle.kts
index a250b64c..eef52efb 100644
--- a/di-kodein/build.gradle.kts
+++ b/di-kodein/build.gradle.kts
@@ -2,9 +2,9 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
-    kotlin("plugin.serialization") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
+    kotlin("plugin.serialization") version "1.9.21"
 }
 
 application {
diff --git a/di-kodein/gradle.properties b/di-kodein/gradle.properties
index 8151c200..97dde662 100644
--- a/di-kodein/gradle.properties
+++ b/di-kodein/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/filelisting/build.gradle.kts b/filelisting/build.gradle.kts
index 53f02d93..5eec1300 100644
--- a/filelisting/build.gradle.kts
+++ b/filelisting/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/filelisting/gradle.properties b/filelisting/gradle.properties
index 8151c200..97dde662 100644
--- a/filelisting/gradle.properties
+++ b/filelisting/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/fullstack-mpp/build.gradle b/fullstack-mpp/build.gradle
index b0723e21..8c3e8093 100644
--- a/fullstack-mpp/build.gradle
+++ b/fullstack-mpp/build.gradle
@@ -6,7 +6,7 @@ buildscript {
     }
 
     dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.21"
     }
 }
 
@@ -29,7 +29,7 @@ kotlin {
 
     sourceSets.each {
         it.dependencies {
-            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.6"))
+            implementation(project.dependencies.enforcedPlatform("io.ktor:ktor-bom:2.3.7"))
         }
     }
 
diff --git a/graalvm/build.gradle.kts b/graalvm/build.gradle.kts
index 626c4c32..025b601f 100644
--- a/graalvm/build.gradle.kts
+++ b/graalvm/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
     application
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
     id("org.graalvm.buildtools.native") version "0.9.19"
 }
 
diff --git a/h2/build.gradle.kts b/h2/build.gradle.kts
index b0923233..09415a07 100644
--- a/h2/build.gradle.kts
+++ b/h2/build.gradle.kts
@@ -3,8 +3,8 @@ val logback_version: String by project
 
 plugins {
     application
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 group = "io.ktor.samples"
diff --git a/h2/gradle.properties b/h2/gradle.properties
index 8151c200..97dde662 100644
--- a/h2/gradle.properties
+++ b/h2/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/httpbin/build.gradle.kts b/httpbin/build.gradle.kts
index 9d23a454..dd710d3e 100644
--- a/httpbin/build.gradle.kts
+++ b/httpbin/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/httpbin/gradle.properties b/httpbin/gradle.properties
index 309d6b39..fa344247 100644
--- a/httpbin/gradle.properties
+++ b/httpbin/gradle.properties
@@ -1,4 +1,4 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
 
diff --git a/jwt-auth-tests/build.gradle.kts b/jwt-auth-tests/build.gradle.kts
index f752c0ca..c20436b2 100644
--- a/jwt-auth-tests/build.gradle.kts
+++ b/jwt-auth-tests/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
-    kotlin("jvm") version "1.9.10"
-    kotlin("plugin.serialization") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    kotlin("plugin.serialization") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/kweet/build.gradle.kts b/kweet/build.gradle.kts
index 9c07f7eb..37a5a170 100644
--- a/kweet/build.gradle.kts
+++ b/kweet/build.gradle.kts
@@ -3,9 +3,9 @@ val logback_version: String by project
 val exposed_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
-    kotlin("plugin.serialization") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
+    kotlin("plugin.serialization") version "1.9.21"
 }
 
 application {
diff --git a/kweet/gradle.properties b/kweet/gradle.properties
index 274725b3..7cd9c292 100644
--- a/kweet/gradle.properties
+++ b/kweet/gradle.properties
@@ -1,4 +1,4 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 exposed_version=0.40.1
 kotlin.code.style=official
diff --git a/location-header/build.gradle.kts b/location-header/build.gradle.kts
index e5abdea0..11ae255f 100644
--- a/location-header/build.gradle.kts
+++ b/location-header/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/location-header/gradle.properties b/location-header/gradle.properties
index 8151c200..97dde662 100644
--- a/location-header/gradle.properties
+++ b/location-header/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/maven-google-appengine-standard/pom.xml b/maven-google-appengine-standard/pom.xml
index ac776ab8..11a6d396 100644
--- a/maven-google-appengine-standard/pom.xml
+++ b/maven-google-appengine-standard/pom.xml
@@ -11,7 +11,7 @@
     <artifactId>maven-google-appengine-standard</artifactId>
 
     <properties>
-        <kotlin.version>1.9.10</kotlin.version>
+        <kotlin.version>1.9.21</kotlin.version>
         <slf4j.version>1.7.36</slf4j.version>
         <appengine.version>2.0.12</appengine.version>
         <servlet.version>4.0.1</servlet.version>
@@ -37,7 +37,7 @@
             <dependency>
                 <groupId>io.ktor</groupId>
                 <artifactId>ktor-bom</artifactId>
-                <version>2.3.6</version>
+                <version>2.3.7</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
diff --git a/mongodb/build.gradle.kts b/mongodb/build.gradle.kts
index 43381523..9348788e 100644
--- a/mongodb/build.gradle.kts
+++ b/mongodb/build.gradle.kts
@@ -3,9 +3,9 @@ val logback_version: String by project
 val mongodb_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
-    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.21"
 }
 
 group = "com.example"
@@ -32,7 +32,7 @@ dependencies {
     implementation("org.litote.kmongo:kmongo:$mongodb_version")
     testImplementation("io.ktor:ktor-server-tests-jvm")
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version")
-    testImplementation("io.ktor:ktor-server-test-host-jvm:2.3.6")
+    testImplementation("io.ktor:ktor-server-test-host-jvm:2.3.7")
 }
 
 tasks.register("databaseInstance") {
diff --git a/mongodb/gradle.properties b/mongodb/gradle.properties
index 2d9013e9..ed519ac5 100644
--- a/mongodb/gradle.properties
+++ b/mongodb/gradle.properties
@@ -1,4 +1,4 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 mongodb_version=4.8.0
 kotlin.code.style=official
diff --git a/postgres/build.gradle.kts b/postgres/build.gradle.kts
index a4cdee73..b98d7285 100644
--- a/postgres/build.gradle.kts
+++ b/postgres/build.gradle.kts
@@ -2,9 +2,9 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
     id("io.ktor.plugin") version "2.2.3"
-    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.10"
+    id("org.jetbrains.kotlin.plugin.serialization") version "1.9.21"
 }
 
 group = "com.example"
diff --git a/postgres/gradle.properties b/postgres/gradle.properties
index 8151c200..97dde662 100644
--- a/postgres/gradle.properties
+++ b/postgres/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/redirect-with-exception/build.gradle.kts b/redirect-with-exception/build.gradle.kts
index dc5e82da..3b9d5cf6 100644
--- a/redirect-with-exception/build.gradle.kts
+++ b/redirect-with-exception/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/redirect-with-exception/gradle.properties b/redirect-with-exception/gradle.properties
index 8151c200..97dde662 100644
--- a/redirect-with-exception/gradle.properties
+++ b/redirect-with-exception/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/reverse-proxy-ws/build.gradle.kts b/reverse-proxy-ws/build.gradle.kts
index e4a44c61..42b5810c 100644
--- a/reverse-proxy-ws/build.gradle.kts
+++ b/reverse-proxy-ws/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/reverse-proxy-ws/gradle.properties b/reverse-proxy-ws/gradle.properties
index 8151c200..97dde662 100644
--- a/reverse-proxy-ws/gradle.properties
+++ b/reverse-proxy-ws/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/reverse-proxy/build.gradle.kts b/reverse-proxy/build.gradle.kts
index 1195df47..ecfbcb33 100644
--- a/reverse-proxy/build.gradle.kts
+++ b/reverse-proxy/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/reverse-proxy/gradle.properties b/reverse-proxy/gradle.properties
index 8151c200..97dde662 100644
--- a/reverse-proxy/gradle.properties
+++ b/reverse-proxy/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/rx/build.gradle.kts b/rx/build.gradle.kts
index ce6f8119..acbc5f81 100644
--- a/rx/build.gradle.kts
+++ b/rx/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/rx/gradle.properties b/rx/gradle.properties
index 8151c200..97dde662 100644
--- a/rx/gradle.properties
+++ b/rx/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/sse/build.gradle.kts b/sse/build.gradle.kts
index cfa7771e..6b9b9ba1 100644
--- a/sse/build.gradle.kts
+++ b/sse/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/sse/gradle.properties b/sse/gradle.properties
index 8151c200..97dde662 100644
--- a/sse/gradle.properties
+++ b/sse/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/structured-logging/build.gradle.kts b/structured-logging/build.gradle.kts
index 7417dcf8..71c94db0 100644
--- a/structured-logging/build.gradle.kts
+++ b/structured-logging/build.gradle.kts
@@ -2,8 +2,8 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
 }
 
 application {
diff --git a/structured-logging/gradle.properties b/structured-logging/gradle.properties
index 8151c200..97dde662 100644
--- a/structured-logging/gradle.properties
+++ b/structured-logging/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/version-diff/build.gradle.kts b/version-diff/build.gradle.kts
index d84f5a96..7ffb6bdf 100644
--- a/version-diff/build.gradle.kts
+++ b/version-diff/build.gradle.kts
@@ -4,9 +4,9 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
-    kotlin("plugin.serialization") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
+    kotlin("plugin.serialization") version "1.9.21"
 }
 
 group = "org.example"
diff --git a/version-diff/gradle.properties b/version-diff/gradle.properties
index 8151c200..97dde662 100644
--- a/version-diff/gradle.properties
+++ b/version-diff/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official
diff --git a/youkube/build.gradle.kts b/youkube/build.gradle.kts
index 163635c6..0bde2304 100644
--- a/youkube/build.gradle.kts
+++ b/youkube/build.gradle.kts
@@ -2,9 +2,9 @@ val kotlin_version: String by project
 val logback_version: String by project
 
 plugins {
-    kotlin("jvm") version "1.9.10"
-    id("io.ktor.plugin") version "2.3.6"
-    kotlin("plugin.serialization") version "1.9.10"
+    kotlin("jvm") version "1.9.21"
+    id("io.ktor.plugin") version "2.3.7"
+    kotlin("plugin.serialization") version "1.9.21"
 }
 
 application {
diff --git a/youkube/gradle.properties b/youkube/gradle.properties
index 8151c200..97dde662 100644
--- a/youkube/gradle.properties
+++ b/youkube/gradle.properties
@@ -1,3 +1,3 @@
-kotlin_version=1.9.10
+kotlin_version=1.9.21
 logback_version=1.2.11
 kotlin.code.style=official