diff --git a/.idea/externalDependencies.xml b/.idea/externalDependencies.xml
index 5fc34a223d8d..4c698556438e 100644
--- a/.idea/externalDependencies.xml
+++ b/.idea/externalDependencies.xml
@@ -9,6 +9,6 @@
     <plugin id="com.intellij.properties" />
     <plugin id="com.intellij.uiDesigner" />
     <plugin id="org.intellij.groovy" />
-    <plugin id="org.jetbrains.kotlin" min-version="1.0.0-beta-3595" max-version="1.1" />
+    <plugin id="org.jetbrains.kotlin" min-version="1.0.0-beta-4584" max-version="1.1" />
   </component>
 </project>
\ No newline at end of file
diff --git a/build/scripts/download_kotlin.gant b/build/scripts/download_kotlin.gant
index 372dc3de7002..622ff8d0c852 100644
--- a/build/scripts/download_kotlin.gant
+++ b/build/scripts/download_kotlin.gant
@@ -18,7 +18,7 @@ import com.intellij.util.text.VersionComparatorUtil
 import static org.jetbrains.jps.idea.IdeaProjectLoader.guessHome
 includeTargets << new File("${guessHome(this)}/build/scripts/utils.gant")
 
-String kotlinBuildConfigurationOnPublicTeamCity = "Kotlin_Beta3_Idea142branch150versionNoTests"
+String kotlinBuildConfigurationOnPublicTeamCity = "Kotlin_Beta4_Idea142branch150versionNoTests"
 
 target('default': 'Ensures that build/kotlinc directory contains JARs from Kotlin plugin compatible with current IDEA sources. These JARs are used by build scripts.') {
   def communityHome = guessHome(this)