diff --git a/stack8.4.yaml b/stack8.4.yaml
index 551bf83b1..5ffa86d8d 100644
--- a/stack8.4.yaml
+++ b/stack8.4.yaml
@@ -20,7 +20,6 @@ extra-deps:
 - megaparsec-7.0.2
 - tasty-1.2.3
 - tasty-hunit-0.10.0.2
-- ansi-terminal-0.10.2
 - ansi-wl-pprint-0.6.9
 - wai-handler-launch-3.0.3.1
 - streaming-commons-0.2.1.2