diff --git a/integration-tests/gradle/projects/it-android-0/gradle.properties b/integration-tests/gradle/projects/it-android-0/gradle.properties
index 6f34e9b0f37..286fe3c342b 100644
--- a/integration-tests/gradle/projects/it-android-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-android-0/gradle.properties
@@ -2,6 +2,6 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
 dokka_it_android_gradle_plugin_version=4.2.2
 android.useAndroidX=true
diff --git a/integration-tests/gradle/projects/it-basic-groovy/gradle.properties b/integration-tests/gradle/projects/it-basic-groovy/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-basic-groovy/gradle.properties
+++ b/integration-tests/gradle/projects/it-basic-groovy/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-basic/build.gradle.kts b/integration-tests/gradle/projects/it-basic/build.gradle.kts
index 5cb354f4a09..c30e0402a08 100644
--- a/integration-tests/gradle/projects/it-basic/build.gradle.kts
+++ b/integration-tests/gradle/projects/it-basic/build.gradle.kts
@@ -20,7 +20,7 @@ buildscript {
     }
 }
 
-version = "1.9.10-SNAPSHOT"
+version = "1.9.20-SNAPSHOT"
 
 apply(from = "../template.root.gradle.kts")
 
diff --git a/integration-tests/gradle/projects/it-basic/gradle.properties b/integration-tests/gradle/projects/it-basic/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-basic/gradle.properties
+++ b/integration-tests/gradle/projects/it-basic/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-collector-0/gradle.properties b/integration-tests/gradle/projects/it-collector-0/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-collector-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-collector-0/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-configuration/build.gradle.kts b/integration-tests/gradle/projects/it-configuration/build.gradle.kts
index 76e3f6512a5..736202bb3bc 100644
--- a/integration-tests/gradle/projects/it-configuration/build.gradle.kts
+++ b/integration-tests/gradle/projects/it-configuration/build.gradle.kts
@@ -16,7 +16,7 @@ buildscript {
     }
 }
 
-version = "1.9.10-SNAPSHOT"
+version = "1.9.20-SNAPSHOT"
 
 apply(from = "../template.root.gradle.kts")
 
diff --git a/integration-tests/gradle/projects/it-configuration/gradle.properties b/integration-tests/gradle/projects/it-configuration/gradle.properties
index 36aa0558dd9..f958d9e3f31 100644
--- a/integration-tests/gradle/projects/it-configuration/gradle.properties
+++ b/integration-tests/gradle/projects/it-configuration/gradle.properties
@@ -2,6 +2,6 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
 fail_on_warning=false
 report_undocumented=false
diff --git a/integration-tests/gradle/projects/it-js-ir-0/gradle.properties b/integration-tests/gradle/projects/it-js-ir-0/gradle.properties
index 63c36faeea2..a7b64215c19 100644
--- a/integration-tests/gradle/projects/it-js-ir-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-js-ir-0/gradle.properties
@@ -2,5 +2,5 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
 react_version=18.2.0-pre.467
diff --git a/integration-tests/gradle/projects/it-multimodule-0/gradle.properties b/integration-tests/gradle/projects/it-multimodule-0/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-multimodule-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-multimodule-0/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-multimodule-1/gradle.properties b/integration-tests/gradle/projects/it-multimodule-1/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-multimodule-1/gradle.properties
+++ b/integration-tests/gradle/projects/it-multimodule-1/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-multimodule-versioning-0/gradle.properties b/integration-tests/gradle/projects/it-multimodule-versioning-0/gradle.properties
index 504f59b0c3d..a8c59753704 100644
--- a/integration-tests/gradle/projects/it-multimodule-versioning-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-multimodule-versioning-0/gradle.properties
@@ -2,5 +2,5 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
 
diff --git a/integration-tests/gradle/projects/it-multiplatform-0/gradle.properties b/integration-tests/gradle/projects/it-multiplatform-0/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-multiplatform-0/gradle.properties
+++ b/integration-tests/gradle/projects/it-multiplatform-0/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/projects/it-sequential-tasks-execution-stress/gradle.properties b/integration-tests/gradle/projects/it-sequential-tasks-execution-stress/gradle.properties
index 713c80d685c..c49881b9231 100644
--- a/integration-tests/gradle/projects/it-sequential-tasks-execution-stress/gradle.properties
+++ b/integration-tests/gradle/projects/it-sequential-tasks-execution-stress/gradle.properties
@@ -2,5 +2,5 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
 task_number=100
diff --git a/integration-tests/gradle/projects/it-wasm-basic/gradle.properties b/integration-tests/gradle/projects/it-wasm-basic/gradle.properties
index 1e2686effb8..5904fc210f6 100644
--- a/integration-tests/gradle/projects/it-wasm-basic/gradle.properties
+++ b/integration-tests/gradle/projects/it-wasm-basic/gradle.properties
@@ -2,4 +2,4 @@
 # Copyright 2014-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 #
 
-dokka_it_kotlin_version=1.9.10
+dokka_it_kotlin_version=1.9.20
diff --git a/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/TestedVersions.kt b/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/TestedVersions.kt
index e4634c09112..7c3ea4dfaf2 100644
--- a/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/TestedVersions.kt
+++ b/integration-tests/gradle/src/integrationTest/kotlin/org/jetbrains/dokka/it/gradle/TestedVersions.kt
@@ -14,7 +14,7 @@ internal open class AllSupportedTestedVersionsArgumentsProvider : TestedVersions
 
 internal object TestedVersions {
 
-    val LATEST = BuildVersions("7.6.2", "1.9.20-RC2")
+    val LATEST = BuildVersions("7.6.2", "1.9.20")
 
     /**
      * All supported Gradle/Kotlin versions, including [LATEST]
@@ -61,7 +61,7 @@ internal object TestedVersions {
         "1.8.20" to "18.2.0-pre.546",
         "1.9.0" to "18.2.0-pre.597",
         "1.9.10" to "18.2.0-pre.597",
-        "1.9.20-RC2" to "18.2.0-pre.635",
+        "1.9.20" to "18.2.0-pre.635",
     )
 }
 
diff --git a/integration-tests/maven/projects/it-maven/pom.xml b/integration-tests/maven/projects/it-maven/pom.xml
index 3e20bf5395f..6246e27abfd 100644
--- a/integration-tests/maven/projects/it-maven/pom.xml
+++ b/integration-tests/maven/projects/it-maven/pom.xml
@@ -11,7 +11,7 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <kotlin.version>1.9.20-RC</kotlin.version>
+        <kotlin.version>1.9.20</kotlin.version>
     </properties>
     <build>
         <plugins>