diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+concurrent-output (1.10.21) unstable; urgency=medium
+
+  * Allow ansi-terminal-1.1
+
+ -- Joey Hess <id@joeyh.name>  Mon, 29 Apr 2024 10:15:55 -0400
+
 concurrent-output (1.10.20) unstable; urgency=medium
 
   * Allow text-2.1.
diff --git a/concurrent-output.cabal b/concurrent-output.cabal
--- a/concurrent-output.cabal
+++ b/concurrent-output.cabal
@@ -1,5 +1,5 @@
 Name: concurrent-output
-Version: 1.10.20
+Version: 1.10.21
 Cabal-Version: >= 1.10
 License: BSD2
 Maintainer: Joey Hess <id@joeyh.name>
@@ -39,7 +39,7 @@
     , directory (>= 1.2.0 && < 1.4.0)
     , transformers (>= 0.3.0 && < 0.7.0)
     , exceptions (>= 0.6.0 && < 0.11.0)
-    , ansi-terminal (>= 0.6.2 && < 1.1.0)
+    , ansi-terminal (>= 0.6.2 && < 1.2.0)
   Exposed-Modules:
     System.Console.Concurrent
     System.Console.Concurrent.Internal