diff --git a/src/Tunnel.hs b/src/Tunnel.hs
index ae33de0..d4f58a2 100644
--- a/src/Tunnel.hs
+++ b/src/Tunnel.hs
@@ -281,8 +281,3 @@ propagateWrites hTunnel hOther = do
   unless (null payload) (write hTunnel payload >> propagateWrites hTunnel hOther)
 
 
-
-toto :: String -> Connection
-toto  = undefined
-toto :: Int -> Connection
-toto  = undefined
diff --git a/stack.yaml b/stack.yaml
index b467343..a9eaf31 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -15,7 +15,7 @@
 # resolver:
 #  name: custom-snapshot
 #  location: "./custom-snapshot.yaml"
-resolver: lts-7.0
+resolver: lts-7.2
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.