diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for reflex-vty
 
+## 0.1.4.1
+
+* Migrate to new dependent-sum / dependent-map (after the "some" package split)
+
 ## 0.1.4.0
 * ([#15](https://github.com/reflex-frp/reflex-vty/pull/15)) Add `PostBuild` instance for `Layout`.
 * ([#17](https://github.com/reflex-frp/reflex-vty/pull/17)) Add `splitH` to implement horizontal functionality of `splitV`.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,8 +1,10 @@
-# reflex-vty [![hackage](https://img.shields.io/hackage/v/reflex-vty.svg)](https://hackage.haskell.org/package/reflex-vty) [![hackage-ci](https://matrix.hackage.haskell.org/api/v2/packages/reflex-vty/badge)](https://matrix.hackage.haskell.org/#/package/reflex-vty) [![travis-ci](https://api.travis-ci.org/reflex-frp/reflex-vty.svg?branch=develop)](https://travis-ci.org/reflex-frp/reflex-vty)
+# reflex-vty
 
-## A library for building functional reactive terminal applications
+[![Haskell](https://img.shields.io/badge/language-Haskell-orange.svg)](https://haskell.org) [![Hackage](https://img.shields.io/hackage/v/reflex-vty.svg)](https://hackage.haskell.org/package/reflex-vty) [![Hackage CI](https://matrix.hackage.haskell.org/api/v2/packages/reflex-vty/badge)](https://matrix.hackage.haskell.org/#/package/reflex-vty) [![Travis CI](https://api.travis-ci.org/reflex-frp/reflex-vty.svg?branch=develop)](https://travis-ci.org/reflex-frp/reflex-vty) [![BSD3 License](https://img.shields.io/badge/license-BSD3-blue.svg)](https://github.com/reflex-frp/reflex-vty/blob/master/LICENSE)
 
-![reflex-vty example animation](doc/welcome.gif)
+Build terminal applications using functional reactive programming (FRP) with [Reflex FRP](https://reflex-frp.org).
+
+![Example Animation](https://i.imgur.com/FULQNtu.gif)
 
 Feature requests, pull requests, and other feedback are welcome and appreciated (see the [contribution guide](CONTRIBUTING.md)). This library
 is still experimental, so big changes are possible!
diff --git a/doc/welcome.gif b/doc/welcome.gif
deleted file mode 100644
Binary files a/doc/welcome.gif and /dev/null differ
diff --git a/reflex-vty.cabal b/reflex-vty.cabal
--- a/reflex-vty.cabal
+++ b/reflex-vty.cabal
@@ -1,11 +1,10 @@
 name: reflex-vty
-version: 0.1.4.0
-synopsis: Reflex FRP host and widgets for vty applications
+version: 0.1.4.1
+synopsis: Reflex FRP host and widgets for VTY applications
 description:
-  Host and widget library for Reflex-based FRP applications
+  Build terminal applications using functional reactive programming (FRP) with Reflex FRP (<https://reflex-frp.org>).
   .
   <<https://i.imgur.com/FULQNtu.gif>>
-  .
 license: BSD3
 license-file: LICENSE
 author: Obsidian Systems LLC
@@ -14,11 +13,11 @@
 category: FRP
 build-type: Simple
 cabal-version: >=1.18
-extra-source-files: README.md
-                    ChangeLog.md
-extra-doc-files: doc/welcome.gif
-               , doc/tasks.png
-tested-with: GHC ==8.8.3 || ==8.6.5 || ==8.4.4
+extra-source-files:
+  README.md
+  ChangeLog.md
+extra-doc-files: doc/tasks.png
+tested-with: GHC ==8.8.4 || ==8.6.5 || ==8.4.4
 
 library
   exposed-modules: Reflex.Vty
@@ -32,23 +31,23 @@
                  , Reflex.Spider.Orphans
                  , Control.Monad.NodeId
   build-depends:
-    base                              >= 4.10.0 && < 4.14,
-    bimap                             >= 0.3.3 && < 0.4,
-    containers                        >= 0.5.0 && < 0.7,
-    mtl                               >= 2.2.2 && < 2.3,
-    transformers                      >= 0.5.5 && < 0.6,
-    stm                               >= 2.4 && < 2.6,
-    data-default                      >= 0.7.1 && < 0.8,
-    dependent-map                     >= 0.2.4 && < 0.4,
-    text                              >= 1.2.3 && < 1.3,
-    text-icu                          >= 0.7 && < 0.8,
-    dependent-sum                     >= 0.3 && < 0.7,
-    exception-transformers            >= 0.4.0 && < 0.5,
-    primitive                         >= 0.6.3 && < 0.8,
-    ref-tf                            >= 0.4.0 && < 0.5,
-    reflex                            >= 0.6.2 && < 0.8,
-    time                              >= 1.8.0 && < 1.10,
-    vty                               >= 5.21 && < 5.29
+    base >= 4.10.0 && < 4.14,
+    bimap >= 0.3.3 && < 0.4,
+    containers >= 0.5.0 && < 0.7,
+    mtl >= 2.2.2 && < 2.3,
+    transformers >= 0.5.5 && < 0.6,
+    stm >= 2.4 && < 2.6,
+    data-default >= 0.7.1 && < 0.8,
+    dependent-map >= 0.4 && < 0.5,
+    text >= 1.2.3 && < 1.3,
+    text-icu >= 0.7 && < 0.8,
+    dependent-sum >= 0.7 && < 0.8,
+    exception-transformers >= 0.4.0 && < 0.5,
+    primitive >= 0.6.3 && < 0.8,
+    ref-tf >= 0.4.0 && < 0.5,
+    reflex >= 0.7.2 && < 0.8,
+    time >= 1.8.0 && < 1.10,
+    vty >= 5.21 && < 5.29
   hs-source-dirs: src
   default-language: Haskell2010
   ghc-options: -Wall