diff --git a/README.md b/README.md
index da9a82d8..fd35744c 100644
--- a/README.md
+++ b/README.md
@@ -23,22 +23,21 @@ See the [manual](https://tuckey.org/urlrewrite/manual/4.0/index.html) for more i
 
 ## Quick Start
 
-  * Add Maven dependency below or add <a href="http://central.maven.org/maven2/org/tuckey/urlrewritefilter/4.0.3/urlrewritefilter-4.0.3.jar">urlrewritefilter-4.0.3.jar</a> directly into your <b>WEB-INF/lib</b> directory.
+  * Add Maven dependency below or add <a href="http://central.maven.org/maven2/org/tuckey/urlrewritefilter/5.1.2/urlrewritefilter-5.1.2.jar">urlrewritefilter-5.1.2.jar</a> directly into your <b>WEB-INF/lib</b> directory.
 ```xml
     <dependency>
         <groupId>org.tuckey</groupId>
         <artifactId>urlrewritefilter</artifactId>
-        <version>4.0.3</version>
+        <version>5.1.2</version>
     </dependency>
 ```
 
-For Servlet API 5.0, use Jakarta classifier like
+For Servlet API 4 or less (javax), use the old version 4.x
 ```xml
     <dependency>
         <groupId>org.tuckey</groupId>
         <artifactId>urlrewritefilter</artifactId>
         <version>4.0.3</version>
-        <classifier>jakarta</classifier>
     </dependency>
 ```
   * Add the following to your WEB-INF/web.xml (add it near the top above your servlet mappings (if you have any)): (see <a href="https://tuckey.org/urlrewrite/manual/4.0/index.html#filterparams">filter parameters</a> for more options)
diff --git a/container-test/example-webapp/pom.xml b/container-test/example-webapp/pom.xml
index c74e2ab7..a10d846d 100644
--- a/container-test/example-webapp/pom.xml
+++ b/container-test/example-webapp/pom.xml
@@ -58,7 +58,7 @@
             <!-- run `mvn install` locally root of project -->
             <groupId>org.tuckey</groupId>
             <artifactId>urlrewritefilter</artifactId>
-            <version>5.1.1</version>
+            <version>5.1.2</version>
         </dependency>
         <dependency>
             <groupId>jakarta.servlet</groupId>
diff --git a/container-test/test-with-testcontainers/pom.xml b/container-test/test-with-testcontainers/pom.xml
index 1e8402e8..c53a9b45 100644
--- a/container-test/test-with-testcontainers/pom.xml
+++ b/container-test/test-with-testcontainers/pom.xml
@@ -46,7 +46,7 @@
             <!-- run `mvn install` locally root of project -->
             <groupId>org.tuckey</groupId>
             <artifactId>urlrewritefilter</artifactId>
-            <version>5.1.1</version>
+            <version>5.1.2</version>
         </dependency>
         <dependency>
             <!-- run `mvn install` locally in example-webapp -->
diff --git a/pom.xml b/pom.xml
index be9b9d7a..2fcfdc9c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <groupId>org.tuckey</groupId>
     <artifactId>urlrewritefilter</artifactId>
     <packaging>jar</packaging>
-    <version>5.1.1</version>
+    <version>5.1.2</version>
     <name>UrlRewriteFilter</name>
     <url>http://www.tuckey.org/urlrewrite/</url>
     <inceptionYear>2001</inceptionYear>
diff --git a/src/doc/manual/5.0/index.html b/src/doc/manual/5.0/index.html
index f6e8a402..5468bd49 100644
--- a/src/doc/manual/5.0/index.html
+++ b/src/doc/manual/5.0/index.html
@@ -86,12 +86,12 @@ <h2>Install</h2>
 
  <ol>
     <li>Add Maven dependency below or add
-        <a href="http://central.maven.org/maven2/org/tuckey/urlrewritefilter/4.0.3/urlrewritefilter-4.0.3.jar">urlrewritefilter-<!--@ver-->5.0.0<!--/@ver-->.jar</a>
+        <a href="http://central.maven.org/maven2/org/tuckey/urlrewritefilter/5.1.2/urlrewritefilter-5.1.2.jar">urlrewritefilter-<!--@ver-->5.1.2<!--/@ver-->.jar</a>
         directly into your <b>WEB-INF/lib</b> directory.
            <pre><code>&lt;dependency&gt;
     &lt;groupId&gt;org.tuckey&lt;/groupId&gt;
     &lt;artifactId&gt;urlrewritefilter&lt;/artifactId&gt;
-    &lt;version&gt;<!--@ver-->5.0.0<!--/@ver-->&lt;/version&gt;
+    &lt;version&gt;<!--@ver-->5.1.2<!--/@ver-->&lt;/version&gt;
 &lt;/dependency&gt;</code></pre></li>
      <li>Add the following to your WEB-INF/web.xml (add it near the top above your
         servlet mappings (if you have any)): (see <a href="#filterparams">filter
@@ -106,7 +106,7 @@ <h2>Install</h2>
     &lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;
     &lt;dispatcher&gt;FORWARD&lt;/dispatcher&gt;
 &lt;/filter-mapping&gt;</code></pre></li>
-     <li>Add <b><a href="https://tuckey.org/urlrewrite/manual/4.0/urlrewrite.xml">urlrewrite.xml</a></b>
+     <li>Add <b><a href="https://tuckey.org/urlrewrite/manual/5.0/urlrewrite.xml">urlrewrite.xml</a></b>
          into your WEB-INF directory. (src/main/webapp/WEB-INF/ for Maven users)</li>
      <li>Restart the context.</li>
 </ol>
@@ -255,7 +255,7 @@ <h2>Configuration File WEB-INF/urlrewrite.xml</h2>
 
 <p>Configuration is done via a simple XML file that lives in your <code>WEB-INF</code> folder. It should be named
     urlrewrite.xml.
-    It may be helpful to read the <a href="http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd">UrlRewriteFilter DTD
+    It may be helpful to read the <a href="http://www.tuckey.org/res/dtds/urlrewrite5.0.dtd">UrlRewriteFilter DTD
     (Document Type Definition)</a>. Please also make sure you look at the <a href="guide.html">examples</a>. A simple
     configuration file looks like:</p>
 
diff --git a/src/doc/manual/5.0/introduction.html b/src/doc/manual/5.0/introduction.html
index 77c6d147..16822954 100644
--- a/src/doc/manual/5.0/introduction.html
+++ b/src/doc/manual/5.0/introduction.html
@@ -188,6 +188,17 @@ <h2>License</h2>
  <h2>Changelog</h2>
 
     <ul>
+        <li>5.1.2
+            <ul>
+                <li>Fix: Add v5 DTD</li>
+                <li>Docs: Add 5 references for readme and docs</li>
+            </ul>
+        </li>
+        <li>5.1.1
+            <ul>
+                <li>Changed to be fully based on jakarta servlet API 5</li>
+            </ul>
+        </li>
         <li>5.0.0
             <ul>
                 <li>Removed Annotation processor</li>
diff --git a/src/doc/manual/5.0/urlrewrite-conf-overview-sample.html b/src/doc/manual/5.0/urlrewrite-conf-overview-sample.html
index 62f1ca6f..37736174 100644
--- a/src/doc/manual/5.0/urlrewrite-conf-overview-sample.html
+++ b/src/doc/manual/5.0/urlrewrite-conf-overview-sample.html
@@ -51,7 +51,7 @@
 }
 </style>
 <body>
-<h1><a href="http://www.tuckey.org/urlrewrite/">UrlRewriteFilter</a> 5.0.0-SNAPSHOT build 0d262f7db8cf16b93623a16961666e3ac904a7de configuration overview (generated 1/12/17 12:18 PM)</h1>
+<h1><a href="http://www.tuckey.org/urlrewrite/">UrlRewriteFilter</a> 5.1.2 build 0d262f7db8cf16b93623a16961666e3ac904a7de configuration overview (generated 1/10/23 12:18 PM)</h1>
 <hr />
 <h2>Summary
  of urlrewrite.xml
diff --git a/src/doc/manual/5.0/urlrewrite.xml b/src/doc/manual/5.0/urlrewrite.xml
index a5f596c4..6140db6f 100644
--- a/src/doc/manual/5.0/urlrewrite.xml
+++ b/src/doc/manual/5.0/urlrewrite.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 4.0//EN"
-        "http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd">
+<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 5.0//EN"
+        "http://www.tuckey.org/res/dtds/urlrewrite5.0.dtd">
 
 <!--
 
diff --git a/src/main/java/org/tuckey/web/filters/urlrewrite/ConfHandler.java b/src/main/java/org/tuckey/web/filters/urlrewrite/ConfHandler.java
index f9065a72..ef32729b 100644
--- a/src/main/java/org/tuckey/web/filters/urlrewrite/ConfHandler.java
+++ b/src/main/java/org/tuckey/web/filters/urlrewrite/ConfHandler.java
@@ -72,6 +72,7 @@ public class ConfHandler extends DefaultHandler {
         dtdPaths.put("-//tuckey.org//DTD UrlRewrite 3.2//EN", "/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite3.2.dtd");
         dtdPaths.put("-//tuckey.org//DTD UrlRewrite 3.3//EN", "/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite3.3.dtd");
         dtdPaths.put("-//tuckey.org//DTD UrlRewrite 4.0//EN", "/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite4.0.dtd");
+        dtdPaths.put("-//tuckey.org//DTD UrlRewrite 5.0//EN", "/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite5.0.dtd");
     }
 
     public ConfHandler(String confSystemId) {
diff --git a/src/main/resources/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite5.0.dtd b/src/main/resources/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite5.0.dtd
new file mode 100644
index 00000000..b97658d8
--- /dev/null
+++ b/src/main/resources/org/tuckey/web/filters/urlrewrite/dtds/urlrewrite5.0.dtd
@@ -0,0 +1,125 @@
+<!--
+UrlRewriteFilter DTD
+http://www.tuckey.org/urlrewrite/
+
+Licensed under the BSD License. Text as follows.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+  - Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  - Redistributions in binary form must reproduce the above
+    copyright notice, this list of conditions and the following
+    disclaimer in the documentation and/or other materials provided
+    with the distribution.
+  - Neither the name tuckey.org nor the names of its contributors
+    may be used to endorse or promote products derived from this
+    software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-->
+
+<!ELEMENT urlrewrite ((rule|class-rule|outbound-rule)*, catch*)>
+<!ATTLIST urlrewrite
+use-query-string (true|false) "false"
+use-context  (true|false) "false"
+decode-using CDATA  #IMPLIED
+default-match-type (regex|wildcard) #IMPLIED
+>
+
+<!ELEMENT rule (name?, note?, condition*, from?, set*, run*, gzip?, to?)>
+<!ATTLIST rule
+enabled  (true|false) "true"
+match-type  (regex|wildcard) #IMPLIED
+>
+
+<!ELEMENT class-rule EMPTY>
+<!ATTLIST class-rule
+class  CDATA #IMPLIED
+method CDATA "matches"
+last (true|false) "true"
+>
+
+<!ELEMENT outbound-rule (name?, note?, condition*, from, set*, run*, to?)>
+<!ATTLIST outbound-rule
+enabled  (true|false) "true"
+encodefirst  (true|false) "false"
+match-type  (regex|wildcard) #IMPLIED
+>
+
+<!ELEMENT name (#PCDATA)>
+<!ELEMENT note (#PCDATA)>
+
+<!ELEMENT condition (#PCDATA)>
+<!ATTLIST condition
+type (time|year|month|dayofmonth|dayofweek|ampm|hourofday|minute|second|millisecond|attribute|auth-type|character-encoding|content-length|content-type|context-path|cookie|header|local-port|method|parameter|path-info|path-translated|protocol|query-string|remote-addr|remote-host|remote-user|requested-session-id|request-uri|request-url|session-attribute|session-isnew|port|server-name|scheme|user-in-role|exception|request-filename) "header"
+name CDATA  #IMPLIED
+next (and|or)  "and"
+casesensitive (true|false) "false"
+operator (equal|notequal|greater|less|greaterorequal|lessorequal|instanceof|isdir|isfile|isfilewithsize|notdir|notfile|notfilewithsize) "equal"
+>
+
+<!ELEMENT from (#PCDATA)>
+<!ATTLIST from
+casesensitive (true|false) "false"
+>
+
+<!ELEMENT set (#PCDATA)>
+<!ATTLIST set
+type (request|session|response-header|cookie|content-type|charset|locale|status|expires|parameter|method) "request"
+name CDATA  #IMPLIED
+>
+
+<!ELEMENT to (#PCDATA)>
+<!ATTLIST to
+type (redirect|temporary-redirect|permanent-redirect|pre-include|post-include|forward|passthrough|proxy) "forward"
+last (true|false) "false"
+qsappend (true|false) "false"
+drop-cookies (true|false) "true"
+encode (true|false) #IMPLIED
+context CDATA  #IMPLIED
+>
+
+<!--
+eg,
+<run class="org.tuckey.web.filters.urlrewrite.TestTargetOther" method="runMeFool" />
+<run class="org.tuckey.web.filters.urlrewrite.TestTargetOther" method="run">
+ <init-param>
+ <param-name>biteMe</param-name>
+ <param-value>10</param-value>
+ </init-param>
+</run>
+-->
+<!ELEMENT run (init-param*)>
+<!ATTLIST run
+class  CDATA  #IMPLIED
+method  CDATA  #IMPLIED
+jsonhandler (true|false) "false"
+neweachtime (true|false) "false"
+>
+
+<!-- shortcut for org.tuckey.web.filters.urlrewrite.utils.GzipFilterRun -->
+<!ELEMENT gzip (init-param*)>
+
+
+<!ELEMENT init-param (param-name, param-value)>
+<!ELEMENT param-name (#PCDATA)>
+<!ELEMENT param-value (#PCDATA)>
+
+<!ELEMENT catch (run?)>
+<!ATTLIST catch
+class CDATA #IMPLIED
+>
diff --git a/src/test/webapp/WEB-INF/urlrewrite.xml b/src/test/webapp/WEB-INF/urlrewrite.xml
index a1d27c89..3a132963 100644
--- a/src/test/webapp/WEB-INF/urlrewrite.xml
+++ b/src/test/webapp/WEB-INF/urlrewrite.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 4.0//EN"
-        "http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd">
+<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 5.0//EN"
+        "http://www.tuckey.org/res/dtds/urlrewrite5.0.dtd">
 
 <!--