Bump to LTS 18.18

diff --git a/stack.yaml b/stack.yaml
index 2a6d28c6310352351f5e3ea5c8be5dcd870704db..8d2f24bbf0a9c9d1983cf869bfcbafd628f4ec05 100644 (file)
--- a/stack.yaml
+++ b/stack.yaml
@@ -2,7 +2,7 @@
 # For more information, see: http://docs.haskellstack.org/en/stable/yaml_configuration/
 
 # Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
-resolver: lts-16.31
+resolver: lts-18.18
 
 # Local packages, usually specified by relative directory name
 packages: