diff --git a/github-release.cabal b/github-release.cabal
--- a/github-release.cabal
+++ b/github-release.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 1d976dbb437504ff027a6862a106ab58b1614347b202f6b8a85b55ded7708be4
+-- hash: 9419b8e057b343f1468d097cc2d93fc73794949eb759490d2066954ca1d9bd50
 
 name:           github-release
-version:        1.2.4
+version:        1.2.5
 synopsis:       Upload files to GitHub releases.
 description:    GitHub Release uploads files to GitHub releases.
 category:       Utility
@@ -32,7 +32,7 @@
   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 && <4.13
+    , base >=4.9.0 && <4.14
     , bytestring >=0.10.8 && <0.11
     , http-client >=0.4.31 && <0.7
     , http-client-tls >=0.2.4 && <0.4
@@ -44,6 +44,8 @@
     , uri-templater >=0.2.1 && <0.4
   if impl(ghc >= 8.4)
     ghc-options: -Wno-partial-fields
+  if impl(ghc >= 8.8.1)
+    ghc-options: -Wno-missing-deriving-strategies
   default-language: Haskell2010
 
 executable github-release
@@ -55,7 +57,7 @@
   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 && <4.13
+    , base >=4.9.0 && <4.14
     , bytestring >=0.10.8 && <0.11
     , github-release
     , http-client >=0.4.31 && <0.7
@@ -68,4 +70,6 @@
     , uri-templater >=0.2.1 && <0.4
   if impl(ghc >= 8.4)
     ghc-options: -Wno-partial-fields
+  if impl(ghc >= 8.8.1)
+    ghc-options: -Wno-missing-deriving-strategies
   default-language: Haskell2010
diff --git a/library/GitHubRelease.hs b/library/GitHubRelease.hs
--- a/library/GitHubRelease.hs
+++ b/library/GitHubRelease.hs
@@ -26,8 +26,6 @@
 import qualified Data.ByteString.Char8      as BS8
 import qualified Data.ByteString.Lazy       as BSL
 import qualified Data.HashMap.Strict        as HashMap
-import           Data.Maybe                 (maybe)
-import           Data.Monoid                ((<>))
 import qualified Data.Text                  as Text
 import qualified Data.Version               as Version
 import qualified GHC.Generics               as Generics