diff --git a/tox.ini b/tox.ini
index d7326324..8aab112a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,10 @@ envlist = coverage-clean,py{3.10,3.11,3.12,3.13,3.14,py3.10,3.10-nooptionals},co
 deps =
     asgiref
     coverage
-    pytest
+    # pytest 9.2 removed Node._nodeid, which pytest-benchmark 5.3.0 still reads:
+    # https://github.com/ionelmc/pytest-benchmark/issues/321
+    # Drop the upper bound once a pytest-benchmark release includes the fix.
+    pytest<9.2
     pytest-benchmark
     attrs
     {py3.10,pypy3.10}: twisted