diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for viewprof
 
+## 0.0.0.20 - 2018-07-30
+
+* Relax upper version bounds for vty
+
 ## 0.0.0.19 - 2018-07-13
 
 * Relax upper version bounds for brick and vty
diff --git a/viewprof.cabal b/viewprof.cabal
--- a/viewprof.cabal
+++ b/viewprof.cabal
@@ -1,5 +1,5 @@
 name: viewprof
-version: 0.0.0.19
+version: 0.0.0.20
 synopsis: Text-based interactive GHC .prof viewer
 description:
    viewprof is a text-based interactive GHC .prof viewer.
@@ -36,7 +36,7 @@
     , text >= 1.2.2.0 && < 1.3
     , vector >= 0.10.12.3 && < 0.13
     , vector-algorithms >= 0.6.0.4 && < 0.8
-    , vty >= 5.13 && < 5.23
+    , vty >= 5.13 && < 5.24
   hs-source-dirs: bin
   default-language: Haskell2010
   ghc-options: -Wall -threaded