diff --git a/build.xml b/build.xml
index b6db8c926..d65002be1 100644
--- a/build.xml
+++ b/build.xml
@@ -7,7 +7,7 @@
   <property file="${user.home}/checkstyle.buildproperties" />
 
   <property name="antlr.jar" value="lib/antlr.jar" />
-  <property name="regexp.jar" value="lib/jakarta-regexp-1.2.jar" />
+  <property name="regexp.jar" value="lib/jakarta-regexp-1.3.jar" />
   <property name="junit.jar" value="lib/junit.jar" />
   <property name="beanutils.jar" value="lib/commons-beanutils.jar" />
   <property name="collections.jar" value="lib/commons-collections.jar" />
@@ -435,7 +435,7 @@
     <mkdir dir="${dist.dir}/checkstyle-${version}/tmp" />
     <unjar src="${dist.dir}/checkstyle-${version}/antlr.jar"
            dest="${dist.dir}/checkstyle-${version}/tmp" />
-    <unjar src="${dist.dir}/checkstyle-${version}/jakarta-regexp-1.2.jar"
+    <unjar src="${dist.dir}/checkstyle-${version}/jakarta-regexp-1.3.jar"
            dest="${dist.dir}/checkstyle-${version}/tmp" />
     <unjar src="${dist.dir}/checkstyle-${version}/commons-beanutils.jar"
            dest="${dist.dir}/checkstyle-${version}/tmp" />
diff --git a/docs/releasenotes.html b/docs/releasenotes.html
index e258fe116..f97972647 100644
--- a/docs/releasenotes.html
+++ b/docs/releasenotes.html
@@ -187,6 +187,8 @@
         and object variable to value which is default for variable's
         type (module ExplicitInitialization, request 614387).</li>
 
+	<li class="body">Updated Jakarta Regexp library to version 1.3.</li>
+
       </ul>
 
       <p class="body">
diff --git a/lib/jakarta-regexp-1.2.jar b/lib/jakarta-regexp-1.2.jar
deleted file mode 100644
index 713441c52..000000000
Binary files a/lib/jakarta-regexp-1.2.jar and /dev/null differ
diff --git a/lib/jakarta-regexp-1.3.jar b/lib/jakarta-regexp-1.3.jar
new file mode 100755
index 000000000..d653a388c
Binary files /dev/null and b/lib/jakarta-regexp-1.3.jar differ