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/json-feed.cabal b/json-feed.cabal
--- a/json-feed.cabal
+++ b/json-feed.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: 26491c1177d78c995211d04ce53d476b91a20751e9d276d4da9f23e282154234
+-- hash: 0237ba25ba89ff1d202ca5905037a4f062aecc9f1cfabee0851b168cdcf9c31a
 
 name:           json-feed
-version:        1.0.8
+version:        1.0.9
 synopsis:       JSON Feed
 description:    This is an implementation of the JSON Feed spec in Haskell. The spec is available at <https://jsonfeed.org>. JSON Feed is similar to the Atom and RSS feed formats, but it is serialized as JSON rather than XML.
 category:       Web
@@ -48,7 +48,7 @@
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe
   build-depends:
       aeson >=0.11.2 && <0.12 || >=1.0.2 && <1.5
-    , base >=4.9.0 && <4.14
+    , base >=4.9.0 && <4.15
     , bytestring >=0.10.8 && <0.11
     , mime-types >=0.1.0 && <0.2
     , network-uri >=2.6.1 && <2.8
@@ -69,7 +69,7 @@
   ghc-options: -Weverything -Wno-implicit-prelude -Wno-safe -Wno-unsafe -rtsopts -threaded
   build-depends:
       aeson >=0.11.2 && <0.12 || >=1.0.2 && <1.5
-    , base >=4.9.0 && <4.14
+    , base >=4.9.0 && <4.15
     , bytestring >=0.10.8 && <0.11
     , filepath >=1.4.1 && <1.5
     , hspec >=2.2.3 && <2.8
diff --git a/package.yaml b/package.yaml
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name: json-feed
-version: 1.0.8
+version: 1.0.9
 
 category: Web
 description: >
@@ -20,7 +20,7 @@
 
 dependencies:
   aeson: '>= 0.11.2 && < 0.12 || >= 1.0.2 && < 1.5'
-  base: '>= 4.9.0 && < 4.14'
+  base: '>= 4.9.0 && < 4.15'
   bytestring: '>= 0.10.8 && < 0.11'
   mime-types: '>= 0.1.0 && < 0.2'
   network-uri: '>= 2.6.1 && < 2.8'
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