diff --git a/interactive_terminal_test.hs b/interactive_terminal_test.hs
--- a/interactive_terminal_test.hs
+++ b/interactive_terminal_test.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE ScopedTypeVariables #-}
 module Main where
 
 import Graphics.Vty
diff --git a/vty-examples.cabal b/vty-examples.cabal
--- a/vty-examples.cabal
+++ b/vty-examples.cabal
@@ -1,5 +1,5 @@
 name:                vty-examples
-version:             5.0.0
+version:             5.0.1
 license:             BSD3
 license-file:        ../LICENSE
 author:              AUTHORS
@@ -34,7 +34,7 @@
                        data-default >= 0.5.3,
                        deepseq >= 1.1 && < 1.4,
                        lens,
-                       mtl >= 1.1.1.0 && < 2.2,
+                       mtl >= 1.1.1.0 && < 2.3,
                        parallel >= 2.2 && < 3.3,
                        parsec >= 2 && < 4,
                        string-qq,
@@ -58,7 +58,7 @@
                        containers,
                        data-default >= 0.5.3,
                        lens,
-                       mtl >= 1.1.1.0 && < 2.2,
+                       mtl >= 1.1.1.0 && < 2.3,
                        parallel >= 2.2 && < 3.3,
                        text >= 0.11.3,
                        utf8-string >= 0.3 && < 0.4,
@@ -78,7 +78,7 @@
                        containers,
                        data-default >= 0.5.3,
                        lens,
-                       mtl >= 1.1.1.0 && < 2.2,
+                       mtl >= 1.1.1.0 && < 2.3,
                        parallel >= 2.2 && < 3.3,
                        random >= 1.0 && < 2.0,
                        text >= 0.11.3,
@@ -100,7 +100,7 @@
                        data-default >= 0.5.3,
                        deepseq >= 1.1 && < 1.4,
                        lens,
-                       mtl >= 1.1.1.0 && < 2.2,
+                       mtl >= 1.1.1.0 && < 2.3,
                        parallel >= 2.2 && < 3.3,
                        parsec >= 2 && < 4,
                        QuickCheck >= 2.4,