diff --git a/jing-trang.spec b/jing-trang.spec
index c6d0743..8186ab9 100644
--- a/jing-trang.spec
+++ b/jing-trang.spec
@@ -36,8 +36,10 @@ BuildRequires:  qdox unzip
 BuildRequires:  relaxngDatatype >= 2011.1
 BuildRequires:  saxon9
 BuildRequires:  xalan-j2
-BuildRequires:  xerces-j2
+BuildRequires:  xerces-j2-xml-apis
+BuildRequires:  xml-apis >= 2.0
 BuildRequires:  xml-commons-resolver
+#!BuildIgnore:  xml-commons-jaxp-1.3-apis
 BuildArch:      noarch
 BuildRequires:  ant >= 1.8.2
 
@@ -112,7 +114,7 @@ sed -i -e 's|"\(copying\.txt\)"|"%{_licensedir}/trang/\1"|' \
 
 %build
 CLASSPATH=$(build-classpath \
-    xalan-j2 xalan-j2-serializer saxon9 relaxngDatatype) \
+    xalan-j2 xalan-j2-serializer xerces-j2 xml-commons-apis saxon9 relaxngDatatype) \
 %{ant} \
 	-Dlib.dir=%{_javadir} -Dbuild.sysclasspath=last \
 	-Dant.build.javac.source=1.6 -Dant.build.javac.target=1.6 \