diff --git a/stack-8.yaml b/stack-8.yaml
deleted file mode 100644
index 9ec79cd..0000000
--- a/stack-8.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-resolver: nightly-2017-01-16
-flags: {}
-packages:
-- '.'
-extra-deps:
-- cabal-helper-0.7.3.0
diff --git a/stack.yaml b/stack.yaml
deleted file mode 100644
index 1e26270..0000000
--- a/stack.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-flags: {}
-packages:
-- '.'
-extra-deps: []
-resolver: lts-5.3