diff --git a/apfel.changes b/apfel.changes
index 3ad8e49..5a4f6c0 100644
--- a/apfel.changes
+++ b/apfel.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Apr 29 23:47:26 UTC 2014 - badshah400@gmail.com
+
+- apfel-devel should have a "Requires:" on lhapdf-devel <= 5.9.1. 
+
 -------------------------------------------------------------------
 Sat Apr 19 23:21:37 UTC 2014 - badshah400@gmail.com
 
diff --git a/apfel.spec b/apfel.spec
index a05572f..fc77d9b 100644
--- a/apfel.spec
+++ b/apfel.spec
@@ -56,6 +56,7 @@ This package provides the shared libraries for %{name}.
 Summary:        A PDF Evolution Library
 Group:          Development/Libraries/C and C++
 Requires:       %{soname} = %{version}
+Requires:       lhapdf-devel <= 5.9.1
 
 %description devel
 APFEL is a library to perform the combined QCD+QED DGLAP 
diff --git a/apfelgui.changes b/apfelgui.changes
index 3ad8e49..5a4f6c0 100644
--- a/apfelgui.changes
+++ b/apfelgui.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Apr 29 23:47:26 UTC 2014 - badshah400@gmail.com
+
+- apfel-devel should have a "Requires:" on lhapdf-devel <= 5.9.1. 
+
 -------------------------------------------------------------------
 Sat Apr 19 23:21:37 UTC 2014 - badshah400@gmail.com