diff --git a/.docker/Dockerfile-oraclelinux_8 b/.docker/Dockerfile-oraclelinux_8
new file mode 100644
index 0000000..6e976ed
--- /dev/null
+++ b/.docker/Dockerfile-oraclelinux_8
@@ -0,0 +1,5 @@
+FROM oraclelinux:8
+
+RUN yum install -y ruby libjpeg-turbo libpng libXrender fontconfig libXext
+
+CMD /root/wkhtmltopdf_binary_gem/bin/wkhtmltopdf --version
diff --git a/bin/wkhtmltopdf b/bin/wkhtmltopdf
index ddf6a07..7e565a2 100755
--- a/bin/wkhtmltopdf
+++ b/bin/wkhtmltopdf
@@ -37,11 +37,12 @@ suffix = case RbConfig::CONFIG['host_os']
                                   os.start_with?('zorin')
 
            os = 'ubuntu_20.04' if os.start_with?('ubuntu_20.') ||
-                                  os.start_with?('ubuntu_21.') ||
                                   os.start_with?('linuxmint_20.')
+           
+	         os = 'ubuntu_21.10' if os.start_with?('ubuntu_21.') ||
+                                  os.start_with?('linuxmint_21.')
 
            os = 'ubuntu_22.04' if os.start_with?('ubuntu_22.') ||
-                                  os.start_with?('linuxmint_21.') ||
                                   os.start_with?('tuxedo_22.')
 
            os = 'centos_6' if (os.start_with?('amzn_') && os != 'amzn_2') ||
@@ -50,7 +51,10 @@ suffix = case RbConfig::CONFIG['host_os']
            os = 'centos_7' if (os.start_with?('amzn_2') && !os.start_with?('amzn_20')) ||
                               os.start_with?('rhel_7.')
 
-           os = 'centos_8' if os.start_with?('almalinux_8') || os.start_with?('rocky_8') || os.start_with?('rhel_8.')
+           os = 'centos_8' if os.start_with?('rocky_8') ||
+                              os.start_with?('rhel_8.') ||
+                              os.start_with?('ol_8.') ||
+                              os.start_with?('almalinux_8')
 
            os_based_on_debian_9 = os.start_with?('debian_9') ||
                                   os.start_with?('deepin')
diff --git a/bin/wkhtmltopdf_ubuntu_21.10_amd64.gz b/bin/wkhtmltopdf_ubuntu_21.10_amd64.gz
new file mode 100644
index 0000000..1889a41
Binary files /dev/null and b/bin/wkhtmltopdf_ubuntu_21.10_amd64.gz differ
diff --git a/docker-compose.yml b/docker-compose.yml
index ae5031a..1d00e48 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -79,6 +79,13 @@ services:
     volumes:
       - .:/root/wkhtmltopdf_binary_gem
 
+  oraclelinux_8:
+    build:
+      context: .
+      dockerfile: .docker/Dockerfile-oraclelinux_8
+    volumes:
+      - .:/root/wkhtmltopdf_binary_gem
+
   rockylinux_8:
     build:
       context: .
diff --git a/wkhtmltopdf-binary.gemspec b/wkhtmltopdf-binary.gemspec
index ba25552..b1c7484 100644
--- a/wkhtmltopdf-binary.gemspec
+++ b/wkhtmltopdf-binary.gemspec
@@ -11,6 +11,10 @@ Gem::Specification.new do |s|
   s.files = Dir['bin/*']
   s.executables << "wkhtmltopdf"
   s.require_path = '.'
+  s.homepage = 'https://github.com/zakird/wkhtmltopdf_binary_gem'
+
+  spec.metadata['source_code_uri'] = spec.homepage
+  spec.metadata['changelog_uri'] = "#{spec.homepage}/blob/master/CHANGELOG.md"
 
   s.add_development_dependency "minitest"
   s.add_development_dependency "rake"