diff --git a/build.xml b/build.xml
index d83353f..73d3b7e 100644
--- a/build.xml
+++ b/build.xml
@@ -60,8 +60,8 @@
 	<property name="generated.filename.zip"         value="jacob-${version}" />
 	<property name="generated.filename.version"     value="JacobVersion.properties" />
 	
-	<property name="junit.jar"         value="${basedir}/lib/junit-4.12.jar" />
-	<property name="hamcrest-core.jar" value="${basedir}/lib/hamcrest-core-1.3.jar" />
+	<property name="junit.jar"         value="${basedir}/lib/junit-4.13.jar" />
+	<property name="hamcrest-core.jar" value="${basedir}/lib/hamcrest-2.2.jar" />
 		
 	<property name="src.java.mainroot" value="${basedir}/src" />
 	<property name="src.java.samples"  value="${basedir}/samples" />
diff --git a/lib/hamcrest-2.2.jar b/lib/hamcrest-2.2.jar
new file mode 100644
index 0000000..7106578
Binary files /dev/null and b/lib/hamcrest-2.2.jar differ
diff --git a/lib/hamcrest-core-1.3.jar b/lib/hamcrest-core-1.3.jar
deleted file mode 100644
index 9d5fe16..0000000
Binary files a/lib/hamcrest-core-1.3.jar and /dev/null differ
diff --git a/lib/junit-4.12.jar b/lib/junit-4.12.jar
deleted file mode 100644
index 3a7fc26..0000000
Binary files a/lib/junit-4.12.jar and /dev/null differ
diff --git a/lib/junit-4.13.jar b/lib/junit-4.13.jar
new file mode 100644
index 0000000..acc3c43
Binary files /dev/null and b/lib/junit-4.13.jar differ