diff --git a/stack.yaml b/stack.yaml
index efce96e..e25c8d2 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -3,4 +3,4 @@ packages:
 - '.'
 extra-deps:
 - cabal-helper-0.5.1.0
-resolver: lts-3.0
+resolver: lts-3.1