diff --git a/.ruby-version b/.ruby-version
index 35d16fb..fd2a018 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.5.7
+3.1.0
diff --git a/lib/fluent-plugin-syslog_rfc5424/version.rb b/lib/fluent-plugin-syslog_rfc5424/version.rb
index 819869f..46c010e 100644
--- a/lib/fluent-plugin-syslog_rfc5424/version.rb
+++ b/lib/fluent-plugin-syslog_rfc5424/version.rb
@@ -1,3 +1,3 @@
 module FluentSyslog5424OutputPlugin
-  VERSION = "0.9.0.rc.8"
+  VERSION = "0.10.0"
 end
diff --git a/lib/fluent/plugin/out_syslog_rfc5424.rb b/lib/fluent/plugin/out_syslog_rfc5424.rb
index 49c3ce1..f26f484 100644
--- a/lib/fluent/plugin/out_syslog_rfc5424.rb
+++ b/lib/fluent/plugin/out_syslog_rfc5424.rb
@@ -54,7 +54,7 @@ def find_or_create_socket(transport, host, port)
         socket = find_socket(transport, host, port)
         return socket if socket
 
-        @sockets[socket_key(transport, host, port)] = socket_create(transport.to_sym, host, port, socket_options)
+        @sockets[socket_key(transport, host, port)] = socket_create(transport.to_sym, host, port, **socket_options)
       end
 
       def socket_options