diff --git a/stack.yaml b/stack.yaml
index 1ce5fc3..10eddb2 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,9 +1,11 @@
-resolver: lts-11.1
+resolver: lts-13.25
 
 extra-deps:
-  - czipwith-1.0.1.0
-  - butcher-1.3.1.1
-  - ghc-exactprint-0.5.8.0
+  - multistate-0.8.0.2
+  - butcher-1.3.2.3
+  - deque-0.4.2.3
+  - strict-list-0.1.4
+  - ghc-exactprint-0.5.8.2
 
 packages:
   - .