diff --git a/setup.cfg b/setup.cfg
index dfc49607..822ea8dd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,5 +40,5 @@ install_requires =
     # incompatible with Tahoe-LAFS'.  So duplicate them here (the ones that
     # have been observed to cause problems).
     Twisted[tls,conch]>=18.4.0
-    tahoe-lafs >=1.14, <1.17, !=1.15.*
+    tahoe-lafs
     treq
 
 [versioneer]