diff --git a/stack.yaml b/stack.yaml
index 58cfb8e..02d5a7f 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -2,4 +2,4 @@ flags: {}
 packages:
 - '.'
 extra-deps: []
-resolver: nightly-2015-08-06
+resolver: lts-3.11