diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index 1018cc6da..e5144eceb 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -14,7 +14,7 @@ import org.gradle.kotlin.dsl.exclude
 import org.jetbrains.kotlin.gradle.plugin.KotlinDependencyHandler
 
 object Versions {
-    const val project = "2.9.0"
+    const val project = "2.9.0-RC2"
 
     const val core = project
     const val console = project
@@ -54,9 +54,9 @@ object Versions {
     // If you the versions below, you need to sync changes to mirai-console/buildSrc/src/main/kotlin/Versions.kt
 
     const val yamlkt = "0.10.2"
-    const val intellijGradlePlugin = "1.3.0"
-//    const val kotlinIntellijPlugin = "211-1.5.20-release-284-IJ7442.40" // keep to newest as kotlinCompiler
-    const val intellij = "2021.3" // don't update easily unless you want your disk space -= 500MB
+    const val intellijGradlePlugin = "1.1"
+    const val kotlinIntellijPlugin = "211-1.5.20-release-284-IJ7442.40" // keep to newest as kotlinCompiler
+    const val intellij = "2021.1.3" // don't update easily unless you want your disk space -= 500MB
 
 }