1 files changed, 2 insertions, 2 deletions
diff --git a/stack.yaml b/stack.yaml
index ae1019c..0a3d7d6 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -2,8 +2,8 @@ flags: {}
 packages:
 - '.'
 extra-deps:
-- 'optparse-applicative-0.14.0.0'
-resolver: 'nightly-2017-06-19'
+- 'haskell-src-exts-1.20.1'
+resolver: nightly-2017-12-14
 install-ghc: true
 system-ghc: false
 allow-newer: true