diff --git a/ghc-vault.changes b/ghc-vault.changes
index ee727f2..42e71b4 100644
--- a/ghc-vault.changes
+++ b/ghc-vault.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Oct 24 09:45:46 UTC 2023 - Peter Simons <psimons@suse.com>
+
+- Update vault to version 0.3.1.5 revision 5.
+  Upstream has revised the Cabal build instructions on Hackage.
+
 -------------------------------------------------------------------
 Sat Oct  7 10:43:07 UTC 2023 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-vault.spec b/ghc-vault.spec
index 1fa3754..2320de0 100644
--- a/ghc-vault.spec
+++ b/ghc-vault.spec
@@ -25,7 +25,7 @@ Summary:        A persistent store for values of arbitrary types
 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/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-base-devel
 BuildRequires:  ghc-base-prof
diff --git a/vault.cabal b/vault.cabal
index bd2faa6..7724519 100644
--- a/vault.cabal
+++ b/vault.cabal
@@ -1,6 +1,6 @@
 Name:               vault
 Version:            0.3.1.5
-x-revision: 4
+x-revision: 5
 Synopsis:           a persistent store for values of arbitrary types
 Description:
   A /vault/ is a persistent store for values of arbitrary types.
@@ -49,7 +49,7 @@ flag UseGHC
 
 Library
     hs-source-dirs:     src
-    build-depends:      base >= 4.5 && < 4.19,
+    build-depends:      base >= 4.5 && < 4.20,
                         containers >= 0.4 && < 0.8,
                         unordered-containers >= 0.2.3.0 && < 0.3,
                         hashable >= 1.1.2.5 && < 1.5