diff --git a/src/borg/testsuite/archiver.py b/src/borg/testsuite/archiver.py
index c2ee22800..dc07367fd 100644
--- a/src/borg/testsuite/archiver.py
+++ b/src/borg/testsuite/archiver.py
@@ -4411,8 +4411,6 @@ class ArchiverCheckTestCase(ArchiverTestCaseBase):
         self.assert_in('Starting repository check', output)
         self.assert_in('Starting archive consistency check', output)
         self.assert_in('Checking segments', output)
-        # reset logging to new process default to avoid need for fork=True on next check
-        logging.getLogger('borg.output.progress').setLevel(logging.NOTSET)
         output = self.cmd('check', '-v', '--repository-only', self.repository_location, exit_code=0)
         self.assert_in('Starting repository check', output)
         self.assert_not_in('Starting archive consistency check', output)
diff --git a/src/borg/testsuite/conftest.py b/src/borg/testsuite/conftest.py
index bc40f33b7..12070964c 100644
--- a/src/borg/testsuite/conftest.py
+++ b/src/borg/testsuite/conftest.py
@@ -1,3 +1,4 @@
+import logging
 import os
 
 import pytest
@@ -26,6 +27,23 @@ from borg.testsuite import are_symlinks_supported, are_hardlinks_supported, is_u
 from borg.testsuite.platform import fakeroot_detected  # noqa: E402
 
 
+@pytest.fixture(autouse=True)
+def reset_progress_logger():
+    # ProgressIndicatorBase installs a handler on the process-global
+    # 'borg.output.progress' logger and only removes it in __del__, and in-process
+    # (fork=False) command execution leaves this logger at level INFO / propagate=False.
+    # This state leaks across tests and makes the progress tests flaky (the progress
+    # output ends up in the logging system instead of on the stderr captured by capfd).
+    # Reset it after each test to keep tests isolated.
+    yield
+    logger = logging.getLogger('borg.output.progress')
+    for handler in logger.handlers[:]:
+        logger.removeHandler(handler)
+        handler.close()
+    logger.setLevel(logging.NOTSET)
+    logger.propagate = True
+
+
 @pytest.fixture(autouse=True)
 def clean_env(tmpdir_factory, monkeypatch):
     # avoid that we access / modify the user's normal .config / .cache directory: