diff --git a/stack-ghc7.10.yaml b/stack-ghc7.10.yaml
index 04868f31d..63c8e5ca3 100644
--- a/stack-ghc7.10.yaml
+++ b/stack-ghc7.10.yaml
@@ -1,5 +1,4 @@
-# Last-tested stack build plan using GHC 7.10.3.
-# This one is not tested as often as stack.yaml.
+# Last-tested stack build plan using GHC 7.10.3
 
 resolver: lts-6.27
 
@@ -15,3 +14,19 @@ extra-deps:
 - text-zipper-0.8.1
 - vty-5.11.3
 - megaparsec-5.1.2
+
+# latest as of 2017/2/4, untested:
+#resolver: lts-6.30
+#
+#packages:
+#- hledger-lib
+#- hledger
+#- hledger-ui
+#- hledger-web
+#- hledger-api
+#
+#extra-deps:
+#- megaparsec-5.2.0
+#- vty-5.15
+#- brick-0.17
+#- text-zipper-0.10
diff --git a/stack.yaml b/stack.yaml
index 680b775f8..9f4191e49 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,6 +1,6 @@
-# Last-tested stack build plan using GHC 8.0.
+# Last-tested stack build plan using GHC 8
 
-resolver: lts-7.14
+resolver: lts-7.19
 
 packages:
 - hledger-lib
@@ -11,11 +11,11 @@ packages:
 
 extra-deps:
 # for hledger-ui:
-- brick-0.16
-- vty-5.14
-- text-zipper-0.8.1
+- vty-5.15
+- brick-0.17
+- text-zipper-0.10
 # for hledger-web:
-- wai-handler-launch-3.0.2.1
-- yesod-auth-1.4.13.5
+- wai-handler-launch-3.0.2.2
+- yesod-auth-1.4.16
 
 # cf https://github.com/commercialhaskell/stack/wiki/stack.yaml