diff --git a/tools/debian/patches/weechat_ubuntu_focal.patch b/tools/debian/patches/weechat_ubuntu_focal.patch
deleted file mode 100644
index 7de5d0ae9..000000000
--- a/tools/debian/patches/weechat_ubuntu_focal.patch
+++ /dev/null
@@ -1,51 +0,0 @@
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 5d15a3548..0786637b9 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -19,7 +19,7 @@
- # along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
- #
- 
--cmake_minimum_required(VERSION 3.18)
-+cmake_minimum_required(VERSION 3.16)
- 
- project(weechat C)
- 
-diff --git a/debian-devel/rules b/debian-devel/rules
-index 086056f76..559ccfffb 100755
---- a/debian-devel/rules
-+++ b/debian-devel/rules
-@@ -8,6 +8,7 @@ override_dh_auto_configure:
- 	dh_auto_configure --buildsystem=cmake -- \
- 		-DCMAKE_INSTALL_PREFIX:FILEPATH=/usr \
- 		-DLIBDIR=/usr/lib/${DEB_HOST_MULTIARCH} \
-+		-DENABLE_CJSON:BOOL=OFF \
- 		-DENABLE_DOC:BOOL=ON \
- 		-DENABLE_MAN:BOOL=ON \
- 		-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo \
-diff --git a/debian-stable/rules b/debian-stable/rules
-index 086056f76..559ccfffb 100755
---- a/debian-stable/rules
-+++ b/debian-stable/rules
-@@ -8,6 +8,7 @@ override_dh_auto_configure:
- 	dh_auto_configure --buildsystem=cmake -- \
- 		-DCMAKE_INSTALL_PREFIX:FILEPATH=/usr \
- 		-DLIBDIR=/usr/lib/${DEB_HOST_MULTIARCH} \
-+		-DENABLE_CJSON:BOOL=OFF \
- 		-DENABLE_DOC:BOOL=ON \
- 		-DENABLE_MAN:BOOL=ON \
- 		-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo \
-diff --git a/src/plugins/ruby/CMakeLists.txt b/src/plugins/ruby/CMakeLists.txt
-index fe72c7c56..1fb293512 100644
---- a/src/plugins/ruby/CMakeLists.txt
-+++ b/src/plugins/ruby/CMakeLists.txt
-@@ -31,7 +31,7 @@ set_target_properties(ruby PROPERTIES PREFIX "")
- # caused by Ruby headers (with Ruby ≥ 3.1.0)
- # see: https://github.com/ruby/ruby/pull/7085
- add_definitions(-Wno-unused-parameter)
--include_directories(${Ruby_INCLUDE_DIRS})
--target_link_libraries(ruby ${Ruby_LIBRARIES} weechat_plugins_scripts coverage_config)
-+include_directories(${RUBY_INCLUDE_DIRS})
-+target_link_libraries(ruby ${RUBY_LIBRARY} weechat_plugins_scripts coverage_config)
- 
- install(TARGETS ruby LIBRARY DESTINATION "${WEECHAT_LIBDIR}/plugins")