diff --git a/gnu/local.mk b/gnu/local.mk
index 847708b873..74778a8791 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -2187,6 +2187,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/ruby-latex-decode-fix-test.patch		\
   %D%/packages/patches/ruby-mustache-1.1.1-fix-race-condition-tests.patch \
   %D%/packages/patches/ruby-nokogiri.patch			\
+  %D%/packages/patches/ruby-pg-fix-connect-timeout.patch	\
   %D%/packages/patches/ruby-x25519-automatic-fallback-non-x86_64.patch \
   %D%/packages/patches/rust-1.64-fix-riscv64-bootstrap.patch	\
   %D%/packages/patches/rust-1.70-fix-rustix-build.patch	\
diff --git a/gnu/packages/patches/ruby-pg-fix-connect-timeout.patch b/gnu/packages/patches/ruby-pg-fix-connect-timeout.patch
new file mode 100644
index 0000000000..16fa10707d
--- /dev/null
+++ b/gnu/packages/patches/ruby-pg-fix-connect-timeout.patch
@@ -0,0 +1,176 @@
+From: "Alexander J. Maidak" <amaidak@equinix.com>
+https://github.com/ged/ruby-pg/pull/619
+
+---
+ lib/pg/connection.rb       | 16 ++++++++++-
+ spec/helpers.rb            | 13 +++++++++
+ spec/pg/connection_spec.rb | 57 +++++++++++++++++++++++++-------------
+ 3 files changed, 65 insertions(+), 21 deletions(-)
+
+diff --git a/lib/pg/connection.rb b/lib/pg/connection.rb
+index 2c9ecd8..572a2bf 100644
+--- a/lib/pg/connection.rb
++++ b/lib/pg/connection.rb
+@@ -680,6 +680,7 @@ class PG::Connection
+ 				host_count = conninfo_hash[:host].to_s.count(",") + 1
+ 				stop_time = timeo * host_count + Process.clock_gettime(Process::CLOCK_MONOTONIC)
+ 			end
++			connection_errors = []
+ 
+ 			poll_status = PG::PGRES_POLLING_WRITING
+ 			until poll_status == PG::PGRES_POLLING_OK ||
+@@ -720,7 +721,13 @@ class PG::Connection
+ 					else
+ 						connhost = "at \"#{host}\", port #{port}"
+ 					end
+-					raise PG::ConnectionBad.new("connection to server #{connhost} failed: timeout expired", connection: self)
++					connection_errors << "connection to server #{connhost} failed: timeout expired"
++					if connection_errors.count < host_count.to_i
++						new_conninfo_hash = rotate_hosts(conninfo_hash.compact)
++						send(:reset_start2, self.class.send(:parse_connect_args, new_conninfo_hash))
++					else
++						raise PG::ConnectionBad.new(connection_errors.join("\n"), connection: self)
++					end
+ 				end
+ 
+ 				# Check to see if it's finished or failed yet
+@@ -733,6 +740,13 @@ class PG::Connection
+ 				raise PG::ConnectionBad.new(msg, connection: self)
+ 			end
+ 		end
++
++		private def rotate_hosts(conninfo_hash)
++			conninfo_hash[:host] = conninfo_hash[:host].split(",").rotate.join(",") if conninfo_hash[:host]
++			conninfo_hash[:port] = conninfo_hash[:port].split(",").rotate.join(",") if conninfo_hash[:port]
++			conninfo_hash[:hostaddr] = conninfo_hash[:hostaddr].split(",").rotate.join(",") if conninfo_hash[:hostaddr]
++			conninfo_hash
++		end
+ 	end
+ 
+ 	include Pollable
+diff --git a/spec/helpers.rb b/spec/helpers.rb
+index 7214ec1..bd546f5 100644
+--- a/spec/helpers.rb
++++ b/spec/helpers.rb
+@@ -475,6 +475,19 @@ EOT
+ 		end
+ 	end
+ 
++	class ListenSocket
++		attr_reader :port
++		def initialize(host = 'localhost', accept: true)
++			TCPServer.open( host, 0 ) do |serv|
++				if accept
++					Thread.new { begin loop do serv.accept end rescue nil end }
++				end
++				@port = serv.local_address.ip_port
++				yield self
++			end
++		end
++	end
++
+ 	def check_for_lingering_connections( conn )
+ 		conn.exec( "SELECT * FROM pg_stat_activity" ) do |res|
+ 			conns = res.find_all {|row| row['pid'].to_i != conn.backend_pid && ["client backend", nil].include?(row["backend_type"]) }
+diff --git a/spec/pg/connection_spec.rb b/spec/pg/connection_spec.rb
+index 63d3585..8a5645a 100644
+--- a/spec/pg/connection_spec.rb
++++ b/spec/pg/connection_spec.rb
+@@ -369,24 +369,38 @@ describe PG::Connection do
+ 		end
+ 	end
+ 
+-	it "times out after connect_timeout seconds" do
+-		TCPServer.open( 'localhost', 54320 ) do |serv|
++	it "times out after 2 * connect_timeout seconds on two connections" do
++		PG::TestingHelpers::ListenSocket.new do |sock|
+ 			start_time = Time.now
+ 			expect {
+ 				described_class.connect(
+-																host: 'localhost',
+-																port: 54320,
+-																connect_timeout: 1,
+-																dbname: "test")
++					host: 'localhost,localhost',
++					port: sock.port,
++					connect_timeout: 1,
++					dbname: "test")
+ 			}.to raise_error do |error|
+ 				expect( error ).to be_an( PG::ConnectionBad )
+-				expect( error.message ).to match( /timeout expired/ )
++				expect( error.message ).to match( /timeout expired.*timeout expired/m )
+ 				if PG.library_version >= 120000
+-					expect( error.message ).to match( /\"localhost\"/ )
+-					expect( error.message ).to match( /port 54320/ )
++					expect( error.message ).to match( /\"localhost\".*\"localhost\"/m )
++					expect( error.message ).to match( /port #{sock.port}/ )
+ 				end
+ 			end
+ 
++			expect( Time.now - start_time ).to be_between(1.9, 10).inclusive
++		end
++	end
++
++	it "succeeds with second host after connect_timeout" do
++		PG::TestingHelpers::ListenSocket.new do |sock|
++			start_time = Time.now
++			conn = described_class.connect(
++				host: 'localhost,localhost,localhost',
++				port: "#{sock.port},#{@port},#{sock.port}",
++				connect_timeout: 1,
++				dbname: "test")
++
++			expect( conn.port ).to eq( @port )
+ 			expect( Time.now - start_time ).to be_between(0.9, 10).inclusive
+ 		end
+ 	end
+@@ -768,7 +782,8 @@ describe PG::Connection do
+ 	end
+ 
+ 	it "raises proper error when sending fails" do
+-		conn = described_class.connect_start( '127.0.0.1', 54320, "", "", "me", "xxxx", "somedb" )
++		sock = PG::TestingHelpers::ListenSocket.new('127.0.0.1', accept: false){ }
++		conn = described_class.connect_start( '127.0.0.1', sock.port, "", "", "me", "xxxx", "somedb" )
+ 		expect{ conn.exec 'SELECT 1' }.to raise_error(PG::UnableToSend, /no connection/){|err| expect(err).to have_attributes(connection: conn) }
+ 	end
+ 
+@@ -1650,11 +1665,12 @@ describe PG::Connection do
+ 
+ 
+ 	it "handles server close while asynchronous connect" do
+-		serv = TCPServer.new( '127.0.0.1', 54320 )
+-		conn = described_class.connect_start( '127.0.0.1', 54320, "", "", "me", "xxxx", "somedb" )
+-		expect( [PG::PGRES_POLLING_WRITING, PG::CONNECTION_OK] ).to include conn.connect_poll
+-		select( nil, [conn.socket_io], nil, 0.2 )
+-		serv.close
++		conn = nil
++		PG::TestingHelpers::ListenSocket.new('127.0.0.1', accept: false)do |sock|
++			conn = described_class.connect_start( '127.0.0.1', sock.port, "", "", "me", "xxxx", "somedb" )
++			expect( [PG::PGRES_POLLING_WRITING, PG::CONNECTION_OK] ).to include conn.connect_poll
++			select( nil, [conn.socket_io], nil, 0.2 )
++		end
+ 		if conn.connect_poll == PG::PGRES_POLLING_READING
+ 			select( [conn.socket_io], nil, nil, 0.2 )
+ 		end
+@@ -1778,12 +1794,13 @@ describe PG::Connection do
+ 	end
+ 
+ 	it "consume_input should raise ConnectionBad for a closed connection" do
+-		serv = TCPServer.new( '127.0.0.1', 54320 )
+-		conn = described_class.connect_start( '127.0.0.1', 54320, "", "", "me", "xxxx", "somedb" )
+-		while [PG::CONNECTION_STARTED, PG::CONNECTION_MADE].include?(conn.connect_poll)
+-			sleep 0.1
++		conn = nil
++		PG::TestingHelpers::ListenSocket.new '127.0.0.1', accept: false do |sock|
++			conn = described_class.connect_start( '127.0.0.1', sock.port, "", "", "me", "xxxx", "somedb" )
++			while [PG::CONNECTION_STARTED, PG::CONNECTION_MADE].include?(conn.connect_poll)
++				sleep 0.1
++			end
+ 		end
+-		serv.close
+ 		expect{ conn.consume_input }.to raise_error(PG::ConnectionBad, /server closed the connection unexpectedly/){|err| expect(err).to have_attributes(connection: conn) }
+ 		expect{ conn.consume_input }.to raise_error(PG::ConnectionBad, /can't get socket descriptor|connection not open/){|err| expect(err).to have_attributes(connection: conn) }
+ 	end
+-- 
+2.47.1
+
diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index af0152bb74..511085e9ba 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -8540,20 +8540,23 @@ (define-public ruby-redcloth
     (license license:expat)))
 
 (define-public ruby-pg
+  (let ((commit "378b7a35c12292625460ef2f33373de7114bf255")
+        (revision "0"))
   (package
     (name "ruby-pg")
-    (version "1.4.6")
+    (version (git-version "1.5.9" revision commit))
     (home-page "https://github.com/ged/ruby-pg")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url home-page)
-             (commit (string-append "v" version))))
+             (commit commit)))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "0k7jgx7x7p6gbsbrv2l5rq27nff2nphnls1sdq525d82b068qnfm"))))
+        (base32 "1aq6kakyghgbb4yykxxl9ziaaa7jbdbyc7vz6avyxhlby1jkj0m8"))
+       (patches
+        (search-patches "ruby-pg-fix-connect-timeout.patch"))))
     (build-system ruby-build-system)
     (arguments
      (list
@@ -8580,7 +8583,7 @@ (define-public ruby-pg
     (synopsis "Ruby interface to PostgreSQL")
     (description "Pg is the Ruby interface to the PostgreSQL RDBMS.  It works
 with PostgreSQL 9.3 and later.")
-    (license license:ruby)))
+    (license license:ruby))))
 
 (define-public ruby-byebug
   (package
