diff --git a/README.md b/README.md
index afadb890..a6df6f85 100644
--- a/README.md
+++ b/README.md
@@ -38,10 +38,7 @@ You should know how to do this. It's recommended to use a working directory like
 
 ### Using apache ant
 
-Resolve dependencies first, use either:
-
-* `ant ivyresolve` to download dependencies using apache ivy
-* `ant mvnresolve` to download dependencies using apache mvn
+Resolve dependencies first by doing `ant mvnresolve` or `mvn initialize`
 
 Then do `ant run`
 
diff --git a/build.xml b/build.xml
index b670232c..938decb3 100644
--- a/build.xml
+++ b/build.xml
@@ -1,9 +1,8 @@
-<project name="opsu!dance" default="hi" xmlns:ivy="antlib:org.apache.ivy.ant">
+<project name="opsu!dance" default="hi">
 
 	<property name="dir.src" value="${basedir}/src" />
 	<property name="dir.lib" value="${basedir}/lib" />
 	<property name="dir.mvnlibs" value="${basedir}/mvnlibs" />
-	<property name="dir.ivylibs" value="${basedir}/ivylibs" />
 	<property name="dir.res" value="${basedir}/res" />
 	<property name="dir.out" value="${basedir}/bin" />
 
@@ -21,14 +20,12 @@
 		<echo>
 ant clean      --> clean the ant working dir
 ant cleanlib   --> clean the lib folder
-ant ivyresolve --> resolve dependencies using ivy
 ant mvnresolve --> resolve dependencies using mvn
 ant compile    --> compile the code
 ant run        --> prepare to run and run
 ant jar        --> package a jar
 
-resolve dependencies first
-(using either mvnresolve or ivyresolve),
+resolve dependencies first (mvnresolve)
 then run (code is compiled automatically when you run)
 		</echo>
 	</target>
@@ -40,12 +37,6 @@ then run (code is compiled automatically when you run)
 	<target name="cleanlib" description="--> clean the lib folder">
 		<delete dir="${dir.lib}" />
 		<delete dir="${dir.mvnlibs}" />
-		<delete dir="${dir.ivylibs}" />
-	</target>
-
-	<target name="ivyresolve" depends="cleanlib" description="--> resolve dependencies using ivy">
-		<ivy:retrieve pattern="${dir.ivylibs}/[artifact]-[revision](-[classifier]).[ext]" />
-		<move file="${dir.ivylibs}" tofile="${dir.lib}" />
 	</target>
 
 	<target name="mvnresolve" depends="cleanlib" description="--> resolve dependencies using mvn">
diff --git a/ivy.xml b/ivy.xml
deleted file mode 100644
index 1573a486..00000000
--- a/ivy.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<ivy-module
-	version="2.0"
-	xmlns:extra="http://ant.apache.org/ivy/extra"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:noNamespaceSchemaLocation="http://ant.apache.org/ivy/schemas/ivy.xsd">
-
-	<info organisation="yugecin.opsudance" module="opsu!dance" />
-
-	<dependencies defaultconfmapping="default">
-		<dependency org="org.lwjgl.lwjgl" name="lwjgl" rev="2.9.3">
-			<exclude module="jinput" />
-		</dependency>
-		<dependency org="org.lwjgl.lwjgl" name="lwjgl-platform" rev="2.9.3">
-			<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-linux" />
-			<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-osx" />
-			<artifact name="lwjgl-platform" type="jar" extra:classifier="natives-windows" />
-		</dependency>
-		<dependency org="org.slick2d" name="slick2d-core" rev="1.0.1">
-			<exclude module="jnlp" />
-			<exclude module="lwjgl" />
-		</dependency>
-		<dependency org="org.jcraft" name="jorbis" rev="0.0.17" />
-		<dependency org="net.lingala.zip4j" name="zip4j" rev="1.3.2" />
-		<dependency org="com.googlecode.soundlibs" name="mp3spi" rev="1.9.5.4">
-			<exclude module="junit" />
-		</dependency>
-		<dependency org="org.xerial" name="sqlite-jdbc" rev="3.8.10.2" />
-		<dependency org="org.json" name="json" rev="20140107" />
-		<dependency org="net.java.dev.jna" name="jna" rev="4.1.0" />
-		<dependency org="net.java.dev.jna" name="jna-platform" rev="4.1.0" />
-		<dependency org="org.apache.maven" name="maven-artifact" rev="3.3.3" />
-		<dependency org="org.apache.commons" name="commons-compress" rev="1.9" />
-		<dependency org="org.tukaani" name="xz" rev="1.5" />
-		<dependency org="com.github.jponge" name="lzma-java" rev="1.3" />
-		<dependency org="gov.nist.math" name="jama" rev="1.0.3" />
-	</dependencies>
-
-</ivy-module>
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