diff --git a/debian/patches/Gemfile/0190-relax-rdoc.patch b/debian/patches/Gemfile/0190-relax-rdoc.patch
new file mode 100644
index 0000000000..12a8ddd950
--- /dev/null
+++ b/debian/patches/Gemfile/0190-relax-rdoc.patch
@@ -0,0 +1,11 @@
+--- a/Gemfile
++++ b/Gemfile
+@@ -156,7 +156,7 @@
+ gem 'commonmarker', '~> 0.23.4'
+ gem 'kramdown', '~> 2.3','>= 2.3.1'
+ gem 'RedCloth', '~> 4.3','>= 4.3.2'
+-gem 'rdoc', '~> 6.0'
++gem 'rdoc'
+ gem 'org-ruby', '~> 0.9.12'
+ gem 'creole', '~> 0.5.0'
+ gem 'wikicloth', '~> 0.8.1'
diff --git a/debian/patches/series b/debian/patches/series
index 94448978cd..ce11a54bfa 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -13,6 +13,7 @@ Gemfile/0140-remove-guard-rspec.patch
 Gemfile/0150-relax-graphlient.patch
 Gemfile/0160-relax-rexml.patch
 Gemfile/0180-add-parser-gem.patch
+Gemfile/0190-relax-rdoc.patch
 nodejs/0010-set-webpack-root.patch
 nodejs/0020-remove-dev-dependencies.patch
 nodejs/0030-use-yarnpkg.patch