diff --git a/ghc-network-bsd.changes b/ghc-network-bsd.changes
index 6edadbc..abbc720 100644
--- a/ghc-network-bsd.changes
+++ b/ghc-network-bsd.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Jun 21 05:22:57 UTC 2021 - psimons@suse.com
+
+- Update network-bsd to version 2.8.1.0 revision 4.
+  Upstream has revised the Cabal build instructions on Hackage.
+
 -------------------------------------------------------------------
 Thu Dec 17 12:20:00 UTC 2020 - Ondřej Súkup <mimi.vx@gmail.com>
  
diff --git a/ghc-network-bsd.spec b/ghc-network-bsd.spec
index c224337..ca1aeeb 100644
--- a/ghc-network-bsd.spec
+++ b/ghc-network-bsd.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-network-bsd
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -24,7 +24,7 @@ Summary:        POSIX network database (<netdb.h>) API
 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/3.cabal#/%{pkg_name}.cabal
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/4.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-deepseq-devel
 BuildRequires:  ghc-network-devel
@@ -33,7 +33,7 @@ ExcludeArch:    %{ix86}
 
 %description
 This package provides Haskell bindings to the the [POSIX network database
-(<netdb.h>)
+(netdb.h)
 API](http://pubs.opengroup.org/onlinepubs/009696699/basedefs/netdb.h.html).
 
 === Relationship to the 'network' package
@@ -47,7 +47,7 @@ This package provides the "Network.BSD" module split off from the
 If in addition to the 'network''s modules also "Network.BSD" is necessary, add
 'network-bsd' to your dependencies like so:
 
-> library > build-depends: network >= 2.7 && < 3.1 > , network-bsd >= 2.7 && <
+> library > build-depends: network >= 2.7 && < 3.2 > , network-bsd >= 2.7 && <
 2.9
 
 I.e. you can control the version of the 'network' package independently.
diff --git a/network-bsd.cabal b/network-bsd.cabal
index af4f75d..69f5bb2 100644
--- a/network-bsd.cabal
+++ b/network-bsd.cabal
@@ -1,14 +1,14 @@
 cabal-version:  1.12
 name:           network-bsd
 version:        2.8.1.0
-x-revision: 3
+x-revision: 4
 license:        BSD3
 license-file:   LICENSE
 maintainer:     Kazu Yamamoto, Herbert Valerio Riedel
 synopsis:       POSIX network database (<netdb.h>) API
 description:
   This package provides Haskell bindings to the
-  the [POSIX network database (<netdb.h>) API](http://pubs.opengroup.org/onlinepubs/009696699/basedefs/netdb.h.html).
+  the [POSIX network database (netdb.h) API](http://pubs.opengroup.org/onlinepubs/009696699/basedefs/netdb.h.html).
   .
   === Relationship to the @network@ package
   .
@@ -22,7 +22,7 @@ description:
   necessary, add @network-bsd@ to your dependencies like so:
   .
   > library
-  >     build-depends: network     >= 2.7 && < 3.1
+  >     build-depends: network     >= 2.7 && < 3.2
   >                  , network-bsd >= 2.7 && < 2.9
   .
   I.e. you can control the version of the @network@ package
@@ -77,7 +77,7 @@ library
                -- changes that aren't reflected in `network-bsd`'s
                -- API version.
                , network (>= 3.0.0.0 && < 3.0.2) 
-                      || (>= 3.1.0.0 && < 3.1.2)
+                      || (>= 3.1.0.0 && < 3.2)
   build-tools: hsc2hs >= 0.67 && < 0.69
   ghc-options: -Wall