diff --git a/javapackages-tools.spec b/javapackages-tools.spec
index efc5888..185598d 100644
--- a/javapackages-tools.spec
+++ b/javapackages-tools.spec
@@ -116,7 +116,8 @@ artifact resolution using XMvn resolver.
 %package -n python3-javapackages
 Summary:        Module for handling various files for Java packaging
 Requires:       python3-PyXB = 1.2.4
-Requires:       python-lxml
+Requires:       python3-lxml
+Requires:       python3-six
 Obsoletes:      python-javapackages < %{version}-%{release}
 
 %description -n python3-javapackages
@@ -128,6 +129,7 @@ packaging in Linux distributions
 Summary:        Module for handling various files for Java packaging
 Requires:       PyXB = 1.2.4
 Requires:       python-lxml
+Requires:       python-six
 Obsoletes:      python3-javapackages < %{version}-%{release}
 
 %description -n python-javapackages