diff --git a/.classpath b/.classpath
index db27cc76f..9fc69a61b 100644
--- a/.classpath
+++ b/.classpath
@@ -87,7 +87,7 @@
 	<classpathentry kind="lib" path="lib/metrics-core-3.2.2.jar"/>
 	<classpathentry kind="lib" path="lib/spatial4j-0.6.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="lib" path="lib/icu4j-58_2.jar"/>
+	<classpathentry kind="lib" path="lib/icu4j-59_1.jar"/>
 	<classpathentry kind="lib" path="lib/htmllexer.jar"/>
 	<classpathentry kind="lib" path="lib/jsoup-1.10.3.jar"/>
 	<classpathentry kind="lib" path="lib/javax.servlet-api-3.1.0.jar"/>
diff --git a/build.xml b/build.xml
index 9d96bd2a9..8f9d2adfa 100644
--- a/build.xml
+++ b/build.xml
@@ -191,7 +191,7 @@
         <pathelement location="${lib}/httpclient-4.5.3.jar" />
         <pathelement location="${lib}/httpcore-4.4.6.jar" />
         <pathelement location="${lib}/httpmime-4.5.3.jar" />
-        <pathelement location="${lib}/icu4j-58_2.jar" />
+        <pathelement location="${lib}/icu4j-59_1.jar" />
     	<pathelement location="${lib}/imageio-bmp-3.3.1.jar" />
     	<pathelement location="${lib}/imageio-core-3.3.1.jar" />
     	<pathelement location="${lib}/imageio-metadata-3.3.1.jar" />
diff --git a/lib/icu4j-58_2.jar b/lib/icu4j-59_1.jar
similarity index 67%
rename from lib/icu4j-58_2.jar
rename to lib/icu4j-59_1.jar
index 71aca7454..3dc69c8a1 100644
Binary files a/lib/icu4j-58_2.jar and b/lib/icu4j-59_1.jar differ
diff --git a/pom.xml b/pom.xml
index 2878681e6..a55ca3f79 100644
--- a/pom.xml
+++ b/pom.xml
@@ -423,7 +423,7 @@
         <dependency>
             <groupId>com.ibm.icu</groupId>
             <artifactId>icu4j</artifactId>
-            <version>58.2</version>
+            <version>59.1</version>
             <type>jar</type>
         </dependency>
         <dependency>