diff --git a/plugins/gradle/tooling-proxy/intellij.gradle.toolingProxy.iml b/plugins/gradle/tooling-proxy/intellij.gradle.toolingProxy.iml
index 6dc9f6490dde..b4f45ec94b5c 100644
--- a/plugins/gradle/tooling-proxy/intellij.gradle.toolingProxy.iml
+++ b/plugins/gradle/tooling-proxy/intellij.gradle.toolingProxy.iml
@@ -2,14 +2,14 @@
 <module type="JAVA_MODULE" version="4">
   <component name="FacetManager">
     <facet type="kotlin-language" name="Kotlin">
-      <configuration version="3" platform="JVM 1.6" allPlatforms="JVM [1.6]">
+      <configuration version="3" platform="JVM 1.6" allPlatforms="JVM [1.6]" useProjectSettings="false">
         <compilerSettings>
-          <option name="additionalArguments" value="-version -Xstrict-java-nullability-assertions -Xjvm-default=enable -Xuse-old-backend" />
+          <option name="additionalArguments" value="-version -Xstrict-java-nullability-assertions -Xjvm-default=enable -Xuse-old-backend -Xopt-in=kotlin.io.path.ExperimentalPathApi -Xopt-in=kotlin.RequiresOptIn -Xopt-in=com.intellij.openapi.util.IntellijInternalApi" />
         </compilerSettings>
         <compilerArguments>
           <option name="jvmTarget" value="1.6" />
-          <option name="languageVersion" value="1.4" />
-          <option name="apiVersion" value="1.4" />
+          <option name="languageVersion" value="1.5" />
+          <option name="apiVersion" value="1.5" />
         </compilerArguments>
       </configuration>
     </facet>