diff --git a/python/testSrc/com/jetbrains/env/python/testing/PythonUnitTestingTest.java b/python/testSrc/com/jetbrains/env/python/testing/PythonUnitTestingTest.java
index 581dcb5f4f75..c31e52a8efef 100644
--- a/python/testSrc/com/jetbrains/env/python/testing/PythonUnitTestingTest.java
+++ b/python/testSrc/com/jetbrains/env/python/testing/PythonUnitTestingTest.java
@@ -16,11 +16,8 @@ import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.PsiElement;
 import com.intellij.testFramework.EdtTestUtil;
 import com.intellij.testFramework.fixtures.CodeInsightTestFixture;
-import com.jetbrains.TestEnv;
 import com.jetbrains.env.EnvTestTagsRequired;
 import com.jetbrains.env.PyExecutionFixtureTestTask;
-import com.jetbrains.env.Staging;
-import com.jetbrains.env.StagingOn;
 import com.jetbrains.env.ut.PyUnitTestProcessRunner;
 import com.jetbrains.python.PyBundle;
 import com.jetbrains.python.PythonHelper;
@@ -322,7 +319,6 @@ public final class PythonUnitTestingTest extends PythonUnitTestingLikeTest<PyUni
 
   // Ensure failed and error subtests work
   @Test
-  @StagingOn(os = TestEnv.WINDOWS) //Flaky
   @EnvTestTagsRequired(tags = "python3")
   public void testSubTestError() {
     runPythonTest(new PyUnitTestProcessWithConsoleTestTask("testRunner/env/unit/subtestError", "test_test.py") {
@@ -353,7 +349,6 @@ public final class PythonUnitTestingTest extends PythonUnitTestingLikeTest<PyUni
   // Ensure failed and error subtests work
   @Test
   @EnvTestTagsRequired(tags = "python3")
-  @StagingOn(os = TestEnv.WINDOWS) //Flaky
   public void testSubTestAssertEqualsError() {
     runPythonTest(new PyUnitTestProcessWithConsoleTestTask("testRunner/env/unit/subtestError", "test_assert_test.py") {
 
@@ -604,7 +599,6 @@ public final class PythonUnitTestingTest extends PythonUnitTestingLikeTest<PyUni
 
   @EnvTestTagsRequired(tags = "python3") // No subtest in py2
   @Test
-  @StagingOn(os = TestEnv.WINDOWS) //Flaky
   public void testSubtest() {
     runPythonTest(new PyUnitTestProcessWithConsoleTestTask("testRunner/env/unit/", "test_subtest.py", 1) {
       @Override
@@ -634,7 +628,6 @@ public final class PythonUnitTestingTest extends PythonUnitTestingLikeTest<PyUni
   }
 
   @EnvTestTagsRequired(tags = "python3") // No subtest in py2
-  @StagingOn(os = TestEnv.WINDOWS) //Flaky
   @Test
   public void testSubtestSkipped() {
     runPythonTest(new PyUnitTestProcessWithConsoleTestTask("testRunner/env/unit/", "test_skipped_subtest.py", 1) {