diff --git a/ed25519.cabal b/ed25519.cabal
index 0a2069f..f4ffbac 100644
--- a/ed25519.cabal
+++ b/ed25519.cabal
@@ -1,6 +1,6 @@
 name:                ed25519
 version:             0.0.5.0
-x-revision: 5
+x-revision:          6
 category:            Cryptography
 license:             MIT
 synopsis:            Ed25519 cryptographic signatures
@@ -61,7 +61,7 @@ flag no-donna
 
 library
   build-depends:
-    ghc-prim    >= 0.1 && < 0.9,
+    ghc-prim    >= 0.1 && < 0.10,
     base        >= 4   && < 5,
     bytestring  >= 0.9 && < 0.12
 
diff --git a/ghc-ed25519.changes b/ghc-ed25519.changes
index fe7aa89..46048bb 100644
--- a/ghc-ed25519.changes
+++ b/ghc-ed25519.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Oct 25 21:20:58 UTC 2022 - Peter Simons <psimons@suse.com>
+
+- Update ed25519 to version 0.0.5.0 revision 6.
+  Upstream has revised the Cabal build instructions on Hackage.
+
 -------------------------------------------------------------------
 Thu Mar 17 05:37:05 UTC 2022 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-ed25519.spec b/ghc-ed25519.spec
index 3bfbce2..a07a4b9 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/5.cabal#/%{pkg_name}.cabal
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/6.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-rpm-macros