diff --git a/stack.yaml b/stack.yaml
index e08b29f88..d38402988 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-6.2
+resolver: lts-6.7
 extra-deps:
   - Ranged-sets-0.3.0
   - bytestring-tree-builder-0.2.7
@@ -18,13 +18,7 @@ extra-deps:
   - hackage-security-0.5.2.1
   - swagger2-2.1
   - hjsonpointer-0.3.0.1
+  - hjsonschema-1.0.0.0
   - network-uri-2.6.1.0
 ghc-options:
   postgrest: -O2 -Werror -Wall -fwarn-identities
-
-packages:
-- .
-- location:
-    git: https://github.com/seagreen/hjsonschema
-    commit: 075da33626d9d5cf20645a998b86518222d6b2d6
-  extra-dep: true