diff --git a/stack.yaml b/stack.yaml
index 1a6d00f31..4e5867da2 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,6 +1,8 @@
-# stack build plan using GHC 8.2.x
+# default stack build plan for developers/HEAD users.
+# This should normally use a recent stackage nightly,
+# to help us detect problems at stackage.
 
-resolver: lts-10.3
+resolver: nightly-2018-03-10
 
 nix:
   pure: false