diff --git a/Rakefile b/Rakefile
index 2b473de..7c1255c 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,7 +7,7 @@ Rake::TestTask.new do |t|
   t.verbose = true
 end
 
-ver = '1.4.22'
+ver = '1.4.23'
 package_root_dir = Dir.pwd
 
 task :core do
@@ -15,7 +15,7 @@ task :core do
     recipe.target = File.join(package_root_dir, 'ports')
     recipe.files << {
       url: "https://oligarchy.co.uk/xapian/#{ver}/xapian-core-#{ver}.tar.xz",
-      sha256: '05884af00b06702ce486057d62a3bfbe6606cf965ada0f5ea570b328a2fa1ea8'
+      sha256: '30d3518172084f310dab86d262b512718a7f9a13635aaa1a188e61dc26b2288c'
     }
     recipe.configure_options = [] # removes MiniPortile defaults
 
@@ -34,7 +34,7 @@ task bindings: [:core] do
     recipe.target = File.join(package_root_dir, 'ports')
     recipe.files << {
       url: "https://oligarchy.co.uk/xapian/#{ver}/xapian-bindings-#{ver}.tar.xz",
-      sha256: '6b5454833ac52a3e32c0bb3a7290a5a2b50488d8918f2a45269557e4de9a31e5'
+      sha256: 'e0bc8cc0ecf0568549c50b51fd59e4cffb5318d6f202afcd4465855ef5f33f7d'
     }
     recipe.configure_options = ['--with-ruby']
 
diff --git a/xapian-full.gemspec b/xapian-full.gemspec
index 4f2ef42..61be1b4 100644
--- a/xapian-full.gemspec
+++ b/xapian-full.gemspec
@@ -2,19 +2,19 @@
 
 Gem::Specification.new do |s|
   s.name = %q{xapian-full-alaveteli}
-  s.version = "1.4.22.1"
+  s.version = "1.4.23.1"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Tom Adams", "Rich Lane", "Seb Bacon", "Alexey Pisarenko", "Louise Crow", "Ian Chard", "Sam Pearson", "Graeme Porteous"]
   s.homepage = %q{https://github.com/mysociety/xapian-full}
-  s.date = %q{2023-02-02}
+  s.date = %q{2023-07-07}
   s.description = %q{Xapian bindings for Ruby without dependency on system Xapian library}
   s.email = %q{mysociety@alaveteli.org}
   s.extensions = ["Rakefile"]
   s.files = [
      "Rakefile",
-     "ports/archives/xapian-bindings-1.4.22.tar.xz",
-     "ports/archives/xapian-core-1.4.22.tar.xz",
+     "ports/archives/xapian-bindings-1.4.23.tar.xz",
+     "ports/archives/xapian-core-1.4.23.tar.xz",
      "xapian-full.gemspec",
   ]
   s.files += Dir.glob("patches/**/*")