diff --git a/stack.yaml b/stack.yaml
index 9744f955..96ea6a46 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-2.17
+resolver: lts-3.7
 packages:
   - ./yesod-core
   - ./yesod-static
@@ -13,6 +13,3 @@ packages:
   - ./yesod
   - ./yesod-eventsource
   - ./yesod-websockets
-extra-deps:
-  - wai-app-static-3.1.0
-  - nonce-1.0.2