diff --git a/setup.cfg b/setup.cfg
index ebbe1949..0ad8f1ed 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,7 +19,7 @@ classifiers =
 [options]
 packages = find:
 install_requires =
-    tokenize-rt>=3.2.0
+    tokenize-rt<4
 python_requires = >=3.7
 
 [options.packages.find]