diff -Nru puppet-5.5.10/debian/changelog puppet-5.5.10.new/debian/changelog
--- puppet-5.5.10/debian/changelog	2020-03-25 18:20:06.000000000 -0300
+++ puppet-5.5.10.new/debian/changelog	2020-03-26 18:36:33.299113850 -0300
@@ -1,3 +1,15 @@
+puppet (5.5.10-4ubuntu3) focal; urgency=medium
+
+  * d/p/fix-ruby27-warning.patch: Add patch to fix a warning when executed
+    with Ruby 2.7. It fixes an autopkgtest regression in ruby-puppet-syntax.
+  * d/t/control: Add allow-stderr restriction to puppet master and puppet
+    master passenger tests.
+  * d/t/control: add 'puppet' to $no_proxy variable in puppet-master-passenger
+    test to let tests make requests to puppet master running locally
+    (LP: #1869265).
+
+ -- Lucas Kanashiro <lucas.kanashiro@canonical.com>  Thu, 26 Mar 2020 18:27:14 -0300
+
 puppet (5.5.10-4ubuntu2) focal; urgency=medium
 
   * d/t/control: generate a certificate for puppet master if it does not
diff -Nru puppet-5.5.10/debian/patches/fix-ruby27-warning.patch puppet-5.5.10.new/debian/patches/fix-ruby27-warning.patch
--- puppet-5.5.10/debian/patches/fix-ruby27-warning.patch	1969-12-31 21:00:00.000000000 -0300
+++ puppet-5.5.10.new/debian/patches/fix-ruby27-warning.patch	2020-03-26 18:27:04.942259438 -0300
@@ -0,0 +1,17 @@
+Description: Fix Ruby 2.7 warning
+ The '**' operater should be used to pass keyword arguments from now on.
+Author: Lucas Kanashiro <lucas.kanashiro@canonical.com>
+Last-Updated: 26-03-2020
+Forwarded: yes, https://github.com/puppetlabs/puppet/pull/8060
+
+--- a/lib/puppet/file_system/file_impl.rb
++++ b/lib/puppet/file_system/file_impl.rb
+@@ -77,7 +77,7 @@
+   end
+ 
+   def read(path, opts = {})
+-    path.read(opts)
++    path.read(**opts)
+   end
+ 
+   def read_preserve_line_endings(path)
diff -Nru puppet-5.5.10/debian/patches/series puppet-5.5.10.new/debian/patches/series
--- puppet-5.5.10/debian/patches/series	2020-03-06 12:15:40.000000000 -0300
+++ puppet-5.5.10.new/debian/patches/series	2020-03-26 18:27:04.950259449 -0300
@@ -7,3 +7,4 @@
 0008-fix-locale-loading.patch
 reproducible-build.patch
 0009-Avoid-BigDecimals-when-loading-JSON-using-Oj.patch
+fix-ruby27-warning.patch
diff -Nru puppet-5.5.10/debian/tests/control puppet-5.5.10.new/debian/tests/control
--- puppet-5.5.10/debian/tests/control	2020-03-25 18:20:06.000000000 -0300
+++ puppet-5.5.10.new/debian/tests/control	2020-03-26 18:26:25.942201952 -0300
@@ -4,11 +4,11 @@
 
 Test-Command: cd debian/tests && (puppet cert print $(hostname --fqdn) >/dev/null 2>&1 || puppet cert generate $(hostname --fqdn) --dns_alt_names=puppet) && rspec spec/puppet-master/*_spec.rb
 Depends: puppet-master,ruby-serverspec
-Restrictions: needs-root,isolation-container
+Restrictions: needs-root,isolation-container,allow-stderr
 
-Test-Command: cd debian/tests && rspec spec/puppet-master-passenger/*_spec.rb
+Test-Command: cd debian/tests && no_proxy=puppet,$no_proxy rspec spec/puppet-master-passenger/*_spec.rb
 Depends: puppet-master-passenger,ruby-serverspec,curl
-Restrictions: needs-root,isolation-container
+Restrictions: needs-root,isolation-container,allow-stderr
 
 Test-Command: cd debian/tests && ./service-setup systemd && rspec spec/service-systemd/*_spec.rb
 Depends: puppet, systemd-sysv, ruby-serverspec