diff --git a/stack.yaml b/stack.yaml
index 3362823..1939eac 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,7 +1,4 @@
-resolver: lts-10.5
+resolver: lts-11.0
 
 packages:
   - .
-
-extra-deps:
-  - butcher-1.3.0.0