diff --git a/src/allmydata/_auto_deps.py b/src/allmydata/_auto_deps.py
index 7a8a18544..3c00f61d3 100644
--- a/src/allmydata/_auto_deps.py
+++ b/src/allmydata/_auto_deps.py
@@ -110,10 +110,10 @@ if sys.platform == "win32":
         #   which includes the fix to <https://twistedmatrix.com/trac/ticket/411>.
         # * The SFTP frontend depends on Twisted 11.0.0 to fix the SSH server
         #   rekeying bug <https://twistedmatrix.com/trac/ticket/4395>
-        # * We don't want Twisted >= 12.3.0 to avoid a dependency of its endpoints
+        # * We don't want Twisted >= 12.2.0 to avoid a dependency of its endpoints
         #   code on pywin32. <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2028>
         #
-        "Twisted >= 11.0.0, <= 12.2.0",
+        "Twisted >= 11.0.0, <= 12.1.0",
 
         # * We need Nevow >= 0.9.33 to avoid a bug in Nevow's setup.py
         #   which imported twisted at setup time.