diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index bbba0ecbc..d85884b68 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -20,8 +20,8 @@ object Versions {
     const val kotlinCompiler = "1.4.21"
     const val kotlinStdlib = "1.4.21"
 
-    const val kotlinIntellijPlugin = "203-1.4.21-release-IJ5981.133" // keep to newest as kotlinCompiler
-    const val intellij = "2020.3" // don't update easily unless you want your disk space -= 500MB
+    const val kotlinIntellijPlugin = "211-1.4.32-release-IJ6693.72" // keep to newest as kotlinCompiler
+    const val intellij = "2021.1" // don't update easily unless you want your disk space -= 500MB
 
 
     const val coroutines = "1.4.0"
@@ -40,7 +40,7 @@ object Versions {
     @Suppress("SpellCheckingInspection")
     const val yamlkt = "0.7.5"
 
-    const val intellijGradlePlugin = "0.4.16"
+    const val intellijGradlePlugin = "0.7.2"
 }
 
 const val `kotlin-compiler` = "org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}"
diff --git a/tools/intellij-plugin/src/creator/build/ProjectCreator.kt b/tools/intellij-plugin/src/creator/build/ProjectCreator.kt
index 9dd38e8e3..154c23763 100644
--- a/tools/intellij-plugin/src/creator/build/ProjectCreator.kt
+++ b/tools/intellij-plugin/src/creator/build/ProjectCreator.kt
@@ -15,7 +15,6 @@ import com.intellij.openapi.module.Module
 import com.intellij.openapi.progress.ProgressIndicator
 import com.intellij.openapi.vfs.VfsUtil
 import com.intellij.openapi.vfs.VirtualFile
-import com.intellij.testFramework.writeChild
 import net.mamoe.mirai.console.intellij.assets.FT
 import net.mamoe.mirai.console.intellij.creator.MiraiProjectModel
 import net.mamoe.mirai.console.intellij.creator.tasks.getTemplate
@@ -24,6 +23,7 @@ import net.mamoe.mirai.console.intellij.creator.tasks.runWriteActionAndWait
 import net.mamoe.mirai.console.intellij.creator.tasks.writeChild
 import net.mamoe.mirai.console.intellij.creator.templateProperties
 import org.jetbrains.kotlin.idea.core.util.toPsiFile
+import java.nio.file.Path
 
 sealed class ProjectCreator(
     val module: Module,
@@ -36,11 +36,11 @@ sealed class ProjectCreator(
         model.checkValuesNotNull()
     }
 
-    protected val filesChanged = mutableListOf<VirtualFile>()
+    protected val filesChanged = mutableListOf<Path>()
 
     @Synchronized
-    protected fun addFileChanged(vf: VirtualFile) {
-        filesChanged.add(vf)
+    protected fun addFileChanged(path: Path) {
+        filesChanged.add(path)
     }
 
     protected fun getTemplate(name: String) = project.getTemplate(name, model.templateProperties)
@@ -49,7 +49,7 @@ sealed class ProjectCreator(
         indicator.text2 = "Reformatting files"
         invokeAndWait {
             for (file in filesChanged) {
-                val psi = file.toPsiFile(project) ?: continue
+                val psi = file.toFile().toPsiFile(project) ?: continue
                 ReformatCodeProcessor(psi, false).run()
             }
         }
@@ -69,13 +69,14 @@ sealed class GradleProjectCreator(
         runWriteActionAndWait {
             VfsUtil.createDirectoryIfMissing(root, "src/main/${model.languageType.sourceSetDirName}")
             VfsUtil.createDirectoryIfMissing(root, "src/main/resources")
-            filesChanged += root.writeChild(model.languageType.pluginMainClassFile(this))
-            filesChanged += root.writeChild("src/main/resources/META-INF/services/net.mamoe.mirai.console.plugin.jvm.JvmPlugin", model.mainClassQualifiedName)
-            filesChanged += root.writeChild("gradle.properties", getTemplate(FT.GradleProperties))
+            addFileChanged(root.writeChild(model.languageType.pluginMainClassFile(this)))
+            addFileChanged(root.writeChild("src/main/resources/META-INF/services/net.mamoe.mirai.console.plugin.jvm.JvmPlugin", model.mainClassQualifiedName))
+            addFileChanged(root.writeChild("gradle.properties", getTemplate(FT.GradleProperties)))
         }
     }
 }
 
+
 class GradleKotlinProjectCreator(
     module: Module, root: VirtualFile, model: MiraiProjectModel,
 ) : GradleProjectCreator(
@@ -84,8 +85,8 @@ class GradleKotlinProjectCreator(
     override fun createProject(module: Module, root: VirtualFile, model: MiraiProjectModel) {
         super.createProject(module, root, model)
         runWriteActionAndWait {
-            filesChanged += root.writeChild("build.gradle.kts", getTemplate(FT.BuildGradleKts))
-            filesChanged += root.writeChild("settings.gradle.kts", getTemplate(FT.SettingsGradleKts))
+            addFileChanged(root.writeChild("build.gradle.kts", getTemplate(FT.BuildGradleKts)))
+            addFileChanged(root.writeChild("settings.gradle.kts", getTemplate(FT.SettingsGradleKts)))
         }
     }
 }
@@ -98,8 +99,8 @@ class GradleGroovyProjectCreator(
     override fun createProject(module: Module, root: VirtualFile, model: MiraiProjectModel) {
         super.createProject(module, root, model)
         runWriteActionAndWait {
-            filesChanged += root.writeChild("build.gradle", getTemplate(FT.BuildGradle))
-            filesChanged += root.writeChild("settings.gradle", getTemplate(FT.SettingsGradle))
+            addFileChanged(root.writeChild("build.gradle", getTemplate(FT.BuildGradle)))
+            addFileChanged(root.writeChild("settings.gradle", getTemplate(FT.SettingsGradle)))
         }
     }
 }
\ No newline at end of file
diff --git a/tools/intellij-plugin/src/creator/tasks/TaskUtils.kt b/tools/intellij-plugin/src/creator/tasks/TaskUtils.kt
index 2b76d5086..e35f5a0dc 100644
--- a/tools/intellij-plugin/src/creator/tasks/TaskUtils.kt
+++ b/tools/intellij-plugin/src/creator/tasks/TaskUtils.kt
@@ -18,7 +18,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.openapi.vfs.LocalFileSystem
 import com.intellij.openapi.vfs.VfsUtil
 import com.intellij.openapi.vfs.VirtualFile
-import com.intellij.testFramework.writeChild
+import com.intellij.util.io.writeChild
 import net.mamoe.mirai.console.intellij.creator.steps.NamedFile
 import org.intellij.lang.annotations.Language
 import java.nio.file.Path
@@ -81,7 +81,13 @@ fun Project.getTemplate(
 ): String = getTemplate(templateName, properties.toMap())
 
 
-fun VirtualFile.writeChild(namedFile: NamedFile): VirtualFile = this.writeChild(namedFile.path, namedFile.content)
+internal fun VirtualFile.writeChild(pluginMainClassFile: NamedFile): Path {
+    return writeChild(pluginMainClassFile.path, pluginMainClassFile.content)
+}
+
+internal fun VirtualFile.writeChild(path: String, content: String): Path {
+    return toNioPath().writeChild(path, content)
+}
 
 @Language("RegExp")
 const val CLASS_NAME_PATTERN = "[a-zA-Z]+[0-9a-zA-Z_]*" // self written
diff --git a/tools/intellij-plugin/src/diagnostics/fix/ConfigurePluginMainServiceFix.kt b/tools/intellij-plugin/src/diagnostics/fix/ConfigurePluginMainServiceFix.kt
index 12fe290d1..0c638a5fd 100644
--- a/tools/intellij-plugin/src/diagnostics/fix/ConfigurePluginMainServiceFix.kt
+++ b/tools/intellij-plugin/src/diagnostics/fix/ConfigurePluginMainServiceFix.kt
@@ -16,8 +16,8 @@ import com.intellij.openapi.project.rootManager
 import com.intellij.openapi.vfs.VfsUtil
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiFile
-import com.intellij.testFramework.writeChild
 import net.mamoe.mirai.console.intellij.creator.tasks.readChildText
+import net.mamoe.mirai.console.intellij.creator.tasks.writeChild
 import org.jetbrains.kotlin.idea.core.isAndroidModule
 import org.jetbrains.kotlin.idea.inspections.KotlinUniversalQuickFix
 import org.jetbrains.kotlin.idea.quickfix.KotlinCrossLanguageQuickFixAction