diff --git a/.gitignore b/.gitignore
index 1587602..242230f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /reducers-3.12.2.tar.gz
 /reducers-3.12.3.tar.gz
+/reducers-3.12.4.tar.gz
diff --git a/ghc-reducers.spec b/ghc-reducers.spec
index ecb2ff8..b5f5fc9 100644
--- a/ghc-reducers.spec
+++ b/ghc-reducers.spec
@@ -5,8 +5,8 @@
 %global pkgver %{pkg_name}-%{version}
 
 Name:           ghc-%{pkg_name}
-Version:        3.12.3
-Release:        16%{?dist}
+Version:        3.12.4
+Release:        1%{?dist}
 Summary:        Semigroups, specialized containers and general map/reduce
 
 License:        BSD
@@ -26,7 +26,6 @@ BuildRequires:  ghc-containers-prof
 BuildRequires:  ghc-fingertree-prof
 BuildRequires:  ghc-hashable-prof
 BuildRequires:  ghc-semigroupoids-prof
-BuildRequires:  ghc-semigroups-prof
 BuildRequires:  ghc-text-prof
 BuildRequires:  ghc-transformers-prof
 BuildRequires:  ghc-unordered-containers-prof
@@ -97,6 +96,7 @@ cp -bp %{SOURCE1} %{pkg_name}.cabal
 
 
 %files devel -f %{name}-devel.files
+%doc CHANGELOG.markdown README.markdown
 
 
 %if %{with haddock}
@@ -111,6 +111,9 @@ cp -bp %{SOURCE1} %{pkg_name}.cabal
 
 
 %changelog
+* Tue Jun 07 2022 Jens Petersen <petersen@redhat.com> - 3.12.4-1
+- https://hackage.haskell.org/package/reducers-3.12.4/changelog
+
 * Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 3.12.3-16
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
 
diff --git a/reducers-3.12.3.cabal b/reducers-3.12.4.cabal
similarity index 74%
rename from reducers-3.12.3.cabal
rename to reducers-3.12.4.cabal
index 18a5663..4570c32 100644
--- a/reducers-3.12.3.cabal
+++ b/reducers-3.12.4.cabal
@@ -1,9 +1,9 @@
 name:          reducers
 category:      Data, Math, Numerical, Semigroups
-version:       3.12.3
+version:       3.12.4
 x-revision: 2
 license:       BSD3
-cabal-version: >= 1.6
+cabal-version: >= 1.10
 license-file:  LICENSE
 author:        Edward A. Kmett
 maintainer:    Edward A. Kmett <ekmett@gmail.com>
@@ -14,7 +14,7 @@ copyright:     Copyright (C) 2008-2016 Edward A. Kmett
 synopsis:      Semigroups, specialized containers and a general map/reduce framework
 description:   Semigroups, specialized containers and a general map/reduce framework.
 build-type:    Simple
-extra-source-files: .travis.yml
+extra-source-files: CHANGELOG.markdown README.markdown
 tested-with:   GHC == 7.0.4
              , GHC == 7.2.2
              , GHC == 7.4.2
@@ -23,8 +23,12 @@ tested-with:   GHC == 7.0.4
              , GHC == 7.10.3
              , GHC == 8.0.2
              , GHC == 8.2.2
-             , GHC == 8.4.3
-             , GHC == 8.6.1
+             , GHC == 8.4.4
+             , GHC == 8.6.5
+             , GHC == 8.8.4
+             , GHC == 8.10.7
+             , GHC == 9.0.1
+             , GHC == 9.2.1
 
 source-repository head
   type: git
@@ -36,16 +40,19 @@ library
   build-depends:
     base                   >= 4        && < 5,
     array                  >= 0.3      && < 0.6,
-    transformers           >= 0.2      && < 0.6,
+    transformers           >= 0.2      && < 0.7,
     bytestring             >= 0.9.1    && < 0.12,
     containers             >= 0.3      && < 0.7,
     fingertree             >= 0.1      && < 0.2,
-    hashable               >= 1.1.2.1  && < 1.4,
-    text                   >= 0.11.1.5 && < 1.3,
+    hashable               >= 1.1.2.1  && < 1.5,
+    text                   >= 0.11.1.5 && < 2.1,
     unordered-containers   >= 0.2      && < 0.3,
-    semigroups             >= 0.9      && < 1,
     semigroupoids          >= 4        && < 6
 
+  if impl(ghc < 8.0)
+    build-depends:
+      semigroups           >= 0.9      && < 1
+
   exposed-modules:
     Data.Generator
     Data.Generator.Combinators
@@ -63,10 +70,11 @@ library
     Data.Semigroup.Self
 
   if impl(ghc)
-    extensions: DeriveDataTypeable
+    default-extensions: DeriveDataTypeable
     cpp-options: -DLANGUAGE_DeriveDataTypeable
 
   ghc-options: -Wall
+  default-language: Haskell2010
 
   -- hack around the buggy unused matches check for class associated types in ghc 8 rc1
   if impl(ghc >= 8)
diff --git a/sources b/sources
index 729d05f..4081b73 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (reducers-3.12.3.tar.gz) = 7bb78ccf107d7bc6bce8d68c3766b799ce2c2a41587ee4d2b7197c2dae1d27a6ce47110f1abd655108d7fcc306e9069a25562e53b00ff97704af0b8aac9139d9
+SHA512 (reducers-3.12.4.tar.gz) = 5640cb567b21e06884d0f8cbdc90530f90ef2bebf783e3d02e0fd5fd7ed2fd24876d612a6e5ece14ccfe80e963f19a2925b2af4c5317c44de75b1b1894457f1f