diff --git a/ed25519.cabal b/ed25519.cabal
index d872986..0a2069f 100644
--- a/ed25519.cabal
+++ b/ed25519.cabal
@@ -1,6 +1,6 @@
 name:                ed25519
 version:             0.0.5.0
-x-revision: 4
+x-revision: 5
 category:            Cryptography
 license:             MIT
 synopsis:            Ed25519 cryptographic signatures
@@ -61,9 +61,9 @@ flag no-donna
 
 library
   build-depends:
-    ghc-prim    >= 0.1 && < 0.8,
+    ghc-prim    >= 0.1 && < 0.9,
     base        >= 4   && < 5,
-    bytestring  >= 0.9 && < 0.11
+    bytestring  >= 0.9 && < 0.12
 
   exposed-modules:
     Crypto.Sign.Ed25519
@@ -97,7 +97,7 @@ test-suite properties
   else
     build-depends:
       base        >= 4   && < 5,
-      bytestring  >= 0.9 && < 0.11,
+      bytestring  >= 0.9 && < 0.12,
       QuickCheck  >= 2.4 && < 2.9,
       ed25519
 
@@ -140,7 +140,7 @@ benchmark bench
   type:               exitcode-stdio-1.0
   build-depends:
       base        >= 4   && < 5,
-      bytestring  >= 0.9 && < 0.11,
+      bytestring  >= 0.9 && < 0.12,
       criterion   >= 0.8 && < 1.2,
       deepseq     >= 1.3 && < 1.5,
       ed25519
diff --git a/ghc-ed25519.changes b/ghc-ed25519.changes
index 9e01162..fe7aa89 100644
--- a/ghc-ed25519.changes
+++ b/ghc-ed25519.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Mar 17 05:37:05 UTC 2022 - Peter Simons <psimons@suse.com>
+
+- Update ed25519 to version 0.0.5.0 revision 5.
+  Upstream has revised the Cabal build instructions on Hackage.
+
 -------------------------------------------------------------------
 Thu Jan 13 15:31:21 UTC 2022 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-ed25519.spec b/ghc-ed25519.spec
index 8812443..3bfbce2 100644
--- a/ghc-ed25519.spec
+++ b/ghc-ed25519.spec
@@ -25,7 +25,7 @@ Summary:        Ed25519 cryptographic signatures
 License:        MIT
 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/4.cabal#/%{pkg_name}.cabal
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/5.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-rpm-macros