diff --git a/.travis.yml b/.travis.yml
index aa33923a..235acaf7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,8 @@ language: c
 
 env:
   - STACK_YAML=stack-ghc-7.8.4.yaml
+  - STACK_YAML=stack-ghc-7.10.3.yaml
   - STACK_YAML=stack.yaml
-  - STACK_YAML=stack-ghc-8.0.2.yaml
 
 addons:
   apt:
diff --git a/stack-ghc-8.0.2.yaml b/stack-ghc-7.10.3.yaml
similarity index 57%
rename from stack-ghc-8.0.2.yaml
rename to stack-ghc-7.10.3.yaml
index 0865ecdc..fb18aac7 100644
--- a/stack-ghc-8.0.2.yaml
+++ b/stack-ghc-7.10.3.yaml
@@ -1,4 +1,4 @@
-resolver: nightly-2017-04-01
+flags: {}
 packages:
 - servant/
 - servant-client/
@@ -7,8 +7,14 @@ packages:
 - servant-server/
 - doc/tutorial
 extra-deps:
-- aeson-1.2.0.0
 - attoparsec-iso8601-1.0.0.0
 - cabal-doctest-1.0.2
+- hspec-2.3.2
+- hspec-core-2.3.2
+- hspec-discover-2.3.2
+- hspec-expectations-0.8.2
+- hspec-wai-0.8.0
 - http-api-data-0.3.7
+- natural-transformation-0.4
 - servant-js-0.9.3
+resolver: lts-6.27
diff --git a/stack.yaml b/stack.yaml
index 525a46d9..0865ecdc 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-flags: {}
+resolver: nightly-2017-04-01
 packages:
 - servant/
 - servant-client/
@@ -7,15 +7,8 @@ packages:
 - servant-server/
 - doc/tutorial
 extra-deps:
+- aeson-1.2.0.0
 - attoparsec-iso8601-1.0.0.0
 - cabal-doctest-1.0.2
-- hspec-2.3.2
-- hspec-core-2.3.2
-- hspec-discover-2.3.2
-- hspec-expectations-0.8.2
-- hspec-wai-0.8.0
 - http-api-data-0.3.7
-- natural-transformation-0.4
-- servant-js-0.9.1
 - servant-js-0.9.3
-resolver: lts-6.27