diff --git a/src/twisted/application/newsfragments/9746.misc b/src/twisted/application/newsfragments/9746.misc
new file mode 100644
index 00000000000..8b137891791
--- /dev/null
+++ b/src/twisted/application/newsfragments/9746.misc
@@ -0,0 +1 @@
+
diff --git a/src/twisted/application/runner/test/test_runner.py b/src/twisted/application/runner/test/test_runner.py
index 9abc3449ad2..cce495b1285 100644
--- a/src/twisted/application/runner/test/test_runner.py
+++ b/src/twisted/application/runner/test/test_runner.py
@@ -15,7 +15,7 @@
     LogLevel, LogPublisher, LogBeginner,
     FileLogObserver, FilteringLogObserver, LogLevelFilterPredicate,
 )
-from twisted.test.proto_helpers import MemoryReactor
+from twisted.internet.testing import MemoryReactor
 
 from ...runner import _runner
 from .._exit import ExitStatus