diff --git a/stack.yaml b/stack.yaml
index f6d523b..6d44485 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,5 +1,3 @@
-resolver: lts-5.9
+resolver: lts-5.13
 packages:
 - '.'
-extra-deps:
-- managed-1.0.3