diff --git a/LICENSE.markdown b/LICENSE.markdown
--- a/LICENSE.markdown
+++ b/LICENSE.markdown
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 Taylor Fausak
+Copyright (c) 2020 Taylor Fausak
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/lackey.cabal b/lackey.cabal
--- a/lackey.cabal
+++ b/lackey.cabal
@@ -1,13 +1,13 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.31.0.
+-- This file has been generated from package.yaml by hpack version 0.33.0.
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 35bdbcffb9ccbc5f9a83dede5aa76e3f9a32f3c358ea4e18c1659cb53c0c1cd5
+-- hash: ce23c2196b1e417aa57d9cc13b9329272359de75521857fee2e29b133ce91a30
 
 name:           lackey
-version:        1.0.11
+version:        1.0.12
 synopsis:       Generate Ruby clients from Servant APIs.
 description:    Lackey generates Ruby clients from Servant APIs.
 category:       Web
@@ -36,7 +36,7 @@
       library
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe
   build-depends:
-      base >=4.9.0 && <4.14
+      base >=4.9.0 && <4.15
     , servant >=0.8.1 && <0.18
     , servant-foreign >=0.8.1 && <0.16
     , text >=1.2.2 && <1.3
@@ -51,7 +51,7 @@
       tests
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe -rtsopts -threaded
   build-depends:
-      base >=4.9.0 && <4.14
+      base >=4.9.0 && <4.15
     , hspec >=2.2.3 && <2.8
     , lackey
     , servant >=0.8.1 && <0.18
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: lackey
-version: 1.0.11
+version: 1.0.12
 
 category: Web
 description: Lackey generates Ruby clients from Servant APIs.
@@ -15,7 +15,7 @@
 synopsis: Generate Ruby clients from Servant APIs.
 
 dependencies:
-  base: '>= 4.9.0 && < 4.14'
+  base: '>= 4.9.0 && < 4.15'
   servant: '>= 0.8.1 && < 0.18'
   servant-foreign: '>= 0.8.1 && < 0.16'
   text: '>= 1.2.2 && < 1.3'
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,1 +1,1 @@
-resolver: lts-13.0
+resolver: lts-15.4