diff --git a/octave.spec b/octave.spec
index 72fa4fa..d593a1e 100644
--- a/octave.spec
+++ b/octave.spec
@@ -1,6 +1,6 @@
 Name:          octave
 Version:       5.1.0
-Release:       2mamba
+Release:       3mamba
 Summary:       A high-level language, primarily intended for numerical computations
 Group:         Applications/Mathematics
 Vendor:        openmamba
@@ -86,6 +86,7 @@ BuildRequires: qscintilla-devel >= 2.11.2
 BuildRequires: libGraphicsMagick-devel >= 1.3.24
 BuildRequires: libqhull-devel >= 2015-1mamba
 BuildRequires: libglpk-devel >= 4.58-1mamba
+BuildRequires: libsuitesparse-devel >= 5.6.0
 BuildRequires: libcares-devel
 BuildRequires: libidn-devel
 BuildRequires: libssh2-devel
@@ -116,10 +117,10 @@ It is easily extensible and customizable via user-defined functions written in O
 
 This package contains static libraries and header files need for development.
 
+%debug_package
+
 %prep
 %setup -q
-#-D -T
-#:<< _EOF
 #%patch0 -p1
 # FIX for gcc 6.1 (Fedora)
 #%patch1 -p1
@@ -207,6 +208,9 @@ install -D -m 644 %{SOURCE1} \
 #%doc ChangeLog README NEWS INSTALL
 
 %changelog
+* Thu Nov 14 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1.0-3mamba
+- rebuilt with libsuitesparse 5.6.0
+
 * Fri Aug 09 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1.0-2mamba
 - rebuilt with qscintilla 2.11.2