diff --git a/2.1.x/multi/multi__integrations.html b/2.1.x/multi/multi__integrations.html
index 158415522..0b4fd0e4a 100644
--- a/2.1.x/multi/multi__integrations.html
+++ b/2.1.x/multi/multi__integrations.html
@@ -72,7 +72,7 @@ For example, if the request was sent to <code class="literal">/this/that</code>,
 You can configure which URIs you would like to skip by using the <code class="literal">spring.sleuth.web.skipPattern</code> property.
 If you have <code class="literal">ManagementServerProperties</code> on the classpath, its value of <code class="literal">contextPath</code> gets appended to the provided skip pattern.
 If you want to reuse Sleuth&#8217;s default skip patterns and append your own, pass those patterns by using the <code class="literal">spring.sleuth.web.additionalSkipPattern</code>.</p><p>To change the order of tracing filter registration, please set the
-<code class="literal">spring.sleuth.web.filter-order</code> property.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dubbo_rpc_support" href="#_dubbo_rpc_support"></a>15.5.5&nbsp;Dubbo RPC support</h3></div></div></div><p>Via the integration with Brave, Spring Cloud Sleuth supports <a class="link" href="http://dubbo.io/" target="_top">Dubbo</a>.
+<code class="literal">spring.sleuth.web.filter-order</code> property.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dubbo_rpc_support" href="#_dubbo_rpc_support"></a>15.5.5&nbsp;Dubbo RPC support</h3></div></div></div><p>Via the integration with Brave, Spring Cloud Sleuth supports <a class="link" href="https://dubbo.apache.org/" target="_top">Dubbo</a>.
 It&#8217;s enough to add the <code class="literal">brave-instrumentation-dubbo-rpc</code> dependency:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;dependency&gt;</span>
     <span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;groupId&gt;</span>io.zipkin.brave<span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;/groupId&gt;</span>
     <span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;artifactId&gt;</span>brave-instrumentation-dubbo-rpc<span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;/artifactId&gt;</span>
diff --git a/2.1.x/single/spring-cloud-sleuth.html b/2.1.x/single/spring-cloud-sleuth.html
index 9b724f3cc..25177a571 100644
--- a/2.1.x/single/spring-cloud-sleuth.html
+++ b/2.1.x/single/spring-cloud-sleuth.html
@@ -906,7 +906,7 @@ For example, if the request was sent to <code class="literal">/this/that</code>,
 You can configure which URIs you would like to skip by using the <code class="literal">spring.sleuth.web.skipPattern</code> property.
 If you have <code class="literal">ManagementServerProperties</code> on the classpath, its value of <code class="literal">contextPath</code> gets appended to the provided skip pattern.
 If you want to reuse Sleuth&#8217;s default skip patterns and append your own, pass those patterns by using the <code class="literal">spring.sleuth.web.additionalSkipPattern</code>.</p><p>To change the order of tracing filter registration, please set the
-<code class="literal">spring.sleuth.web.filter-order</code> property.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dubbo_rpc_support" href="#_dubbo_rpc_support"></a>15.5.5&nbsp;Dubbo RPC support</h3></div></div></div><p>Via the integration with Brave, Spring Cloud Sleuth supports <a class="link" href="http://dubbo.io/" target="_top">Dubbo</a>.
+<code class="literal">spring.sleuth.web.filter-order</code> property.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_dubbo_rpc_support" href="#_dubbo_rpc_support"></a>15.5.5&nbsp;Dubbo RPC support</h3></div></div></div><p>Via the integration with Brave, Spring Cloud Sleuth supports <a class="link" href="https://dubbo.apache.org/" target="_top">Dubbo</a>.
 It&#8217;s enough to add the <code class="literal">brave-instrumentation-dubbo-rpc</code> dependency:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;dependency&gt;</span>
     <span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;groupId&gt;</span>io.zipkin.brave<span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;/groupId&gt;</span>
     <span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;artifactId&gt;</span>brave-instrumentation-dubbo-rpc<span xmlns:d="http://docbook.org/ns/docbook" class="hl-tag">&lt;/artifactId&gt;</span>
diff --git a/2.1.x/spring-cloud-sleuth.xml b/2.1.x/spring-cloud-sleuth.xml
index f6464d545..63f803ba4 100644
--- a/2.1.x/spring-cloud-sleuth.xml
+++ b/2.1.x/spring-cloud-sleuth.xml
@@ -1840,7 +1840,7 @@ If you want to reuse Sleuth&#8217;s default skip patterns and append your own, p
 </section>
 <section xml:id="_dubbo_rpc_support">
 <title>Dubbo RPC support</title>
-<simpara>Via the integration with Brave, Spring Cloud Sleuth supports <link xl:href="http://dubbo.io/">Dubbo</link>.
+<simpara>Via the integration with Brave, Spring Cloud Sleuth supports <link xl:href="https://dubbo.apache.org/">Dubbo</link>.
 It&#8217;s enough to add the <literal>brave-instrumentation-dubbo-rpc</literal> dependency:</simpara>
 <programlisting language="xml" linenumbering="unnumbered">&lt;dependency&gt;
     &lt;groupId&gt;io.zipkin.brave&lt;/groupId&gt;