diff --git a/build.gradle.kts b/build.gradle.kts
index 91833ee1..c6e8cc1e 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -69,6 +69,9 @@ dependencies {
     testFramework(TestFrameworkType.Bundled)
   }
 
+  testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.8.1")
+  testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.8.1")
+
   implementation(libs.bundles.junixsocket)
   implementation(libs.lsp4j)
   testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
@@ -123,6 +126,10 @@ tasks {
     defaultCharacterEncoding = "UTF-8"
   }
 
+  withType<Test> {
+    useJUnitPlatform()
+  }
+
   withType<JavaCompile> {
     dependsOn(generateLexer, generateParser)
 
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 3c3606c2..7763ac85 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -4,7 +4,7 @@ intellijPreview = "242.20224-EAP-CANDIDATE-SNAPSHOT"
 junixsocket = "2.10.0"
 
 [libraries]
-junit = "junit:junit:4.13.2"
+junit = "org.junit.jupiter:junit-jupiter-api:5.10.3"
 junixsocket-common = { module = "com.kohlschutter.junixsocket:junixsocket-common", version.ref = "junixsocket" }
 junixsocket-native-common = { module = "com.kohlschutter.junixsocket:junixsocket-native-common", version.ref = "junixsocket" }
 lsp4j = "org.eclipse.lsp4j:org.eclipse.lsp4j:0.23.1"
diff --git a/src/test/kotlin/com/intellij/plugin/powershell/ide/run/PowerShellRunConfigurationTests.kt b/src/test/kotlin/com/intellij/plugin/powershell/ide/run/PowerShellRunConfigurationTests.kt
index e567dcd5..a91f7a80 100644
--- a/src/test/kotlin/com/intellij/plugin/powershell/ide/run/PowerShellRunConfigurationTests.kt
+++ b/src/test/kotlin/com/intellij/plugin/powershell/ide/run/PowerShellRunConfigurationTests.kt
@@ -5,38 +5,53 @@ import com.intellij.execution.impl.RunManagerImpl
 import com.intellij.execution.impl.RunnerAndConfigurationSettingsImpl
 import com.intellij.execution.runners.ExecutionEnvironment
 import com.intellij.execution.runners.ProgramRunner
-import com.intellij.testFramework.fixtures.BasePlatformTestCase
+import com.intellij.openapi.project.Project
+import com.intellij.testFramework.junit5.TestApplication
+import com.intellij.testFramework.junit5.fixture.projectFixture
 import kotlinx.coroutines.runBlocking
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Test
 import java.nio.file.Path
 import kotlin.io.path.Path
 
-class PowerShellRunConfigurationTests : BasePlatformTestCase() {
+@TestApplication
+class PowerShellRunConfigurationTests {
 
+  private val projectFixture = projectFixture()
+
+  private val project: Project
+    get() = projectFixture.get()
   private val projectPath: Path
     get() = Path(project.basePath!!)
   private val defaultWorkingDirectory
     get() = projectPath.resolve("scripts")
 
+  @Test
   fun testCustomWorkingDirectoryPath() {
     val customDir = projectPath.resolve("ttt")
     assertWorkingDirectory(custom = customDir.toString(), expected = customDir)
   }
 
+  @Test
   fun testNoCustomWorkingDirectory() {
     assertWorkingDirectory(custom = null, expected = defaultWorkingDirectory)
   }
 
+  @Test
   fun testEmptyCustomWorkingDirectory() {
     assertWorkingDirectory(custom = "", expected = defaultWorkingDirectory)
   }
 
+  @Test
   fun testCustomWorkingDirectoryPathVariable() {
     assertWorkingDirectory(custom = "\$PROJECT_DIR$/foobar", expected = projectPath.resolve("foobar"))
   }
 
+  @Test
   fun testInvalidWorkingDir() {
     assertWorkingDirectory(custom = invalidPath, expected = defaultWorkingDirectory)
   }
+  @Test
   fun testInvalidScriptPath() {
     assertWorkingDirectory(custom = null, scriptPath = invalidPath, expected = Path(System.getProperty("user.home")))
   }