diff --git a/ghc-tar.changes b/ghc-tar.changes
index 55f40b1..d8afe2b 100644
--- a/ghc-tar.changes
+++ b/ghc-tar.changes
@@ -1,24 +1,3 @@
--------------------------------------------------------------------
-Mon Aug 31 09:34:31 UTC 2020 - psimons@suse.com
-
-- Update tar to version 0.5.1.1 revision 2.
-  Upstream has revised the Cabal build instructions on Hackage.
-
--------------------------------------------------------------------
-Tue Aug 18 10:46:10 UTC 2020 - Peter Simons <psimons@suse.com>
-
-- Replace %setup -q with the more modern %autosetup macro.
-
--------------------------------------------------------------------
-Tue Jun 16 11:14:40 UTC 2020 - Peter Simons <psimons@suse.com>
-
-- Re-generate file with latest version of spec-cleaner.
-
--------------------------------------------------------------------
-Thu May  7 08:08:26 UTC 2020 - Peter Simons <psimons@suse.com>
-
-- Update Cabal file to get more accurate dependency information.
-
 -------------------------------------------------------------------
 Fri Nov  8 16:14:54 UTC 2019 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-tar.spec b/ghc-tar.spec
index 5c802c1..c124408 100644
--- a/ghc-tar.spec
+++ b/ghc-tar.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-tar
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -25,7 +25,7 @@ Summary:        Reading, writing and manipulating ".tar" archive files
 License:        BSD-3-Clause
 URL:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
-Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/2.cabal#/%{pkg_name}.cabal
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/1.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-array-devel
 BuildRequires:  ghc-bytestring-devel
@@ -64,7 +64,7 @@ Requires(postun): ghc-compiler = %{ghc_version}
 This package provides the Haskell %{pkg_name} library development files.
 
 %prep
-%autosetup -n %{pkg_name}-%{version}
+%setup -q -n %{pkg_name}-%{version}
 cp -p %{SOURCE1} %{pkg_name}.cabal
 
 %build
diff --git a/tar.cabal b/tar.cabal
index 813352b..6449f3c 100644
--- a/tar.cabal
+++ b/tar.cabal
@@ -1,7 +1,7 @@
 cabal-version:   1.12
 name:            tar
 version:         0.5.1.1
-x-revision:      2
+x-revision: 1
 
 license:         BSD3
 license-file:    LICENSE
@@ -27,8 +27,7 @@ description:     This library is for working with \"@.tar@\" archive files. It
 build-type:      Simple
 extra-source-files: changelog.md
 tested-with:     GHC==7.0.4, GHC==7.2.2, GHC==7.4.2, GHC==7.6.3,
-                 GHC==7.8.4, GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.4,
-                 GHC==8.6.5, GHC==8.8.3, GHC==8.10.1
+                 GHC==7.8.4, GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.1
 
 source-repository head
   type: git
@@ -42,7 +41,7 @@ flag old-bytestring
 
 library
 
-  build-depends: base       >= 4 && < 4.15,
+  build-depends: base       >= 4 && < 4.14,
                  filepath             < 1.5,
                  array                < 0.6,
                  containers >= 0.2 && < 0.7,
@@ -117,7 +116,7 @@ test-suite properties
     build-depends: bytestring >= 0.10
 
   if !impl(ghc >= 8.0)
-    build-depends: semigroups >= 0.18 && <0.20
+    build-depends: semigroups == 0.18.*
 
   default-language: Haskell2010
 
@@ -164,7 +163,7 @@ benchmark bench
                  criterion >= 1.0
 
   if !impl(ghc >= 8.0)
-    build-depends: semigroups >= 0.18 && <0.20
+    build-depends: semigroups == 0.18.*
 
   default-language: Haskell2010