diff --git a/extra/mate-calc/mate-calc.SlackBuild b/extra/mate-calc/mate-calc.SlackBuild
index 051de0e..5be8163 100644
--- a/extra/mate-calc/mate-calc.SlackBuild
+++ b/extra/mate-calc/mate-calc.SlackBuild
@@ -24,7 +24,7 @@
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=mate-calc
-VERSION=${VERSION:-1.19.0}
+VERSION=${VERSION:-1.20.0}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_msb}
 
@@ -36,7 +36,7 @@ if [ -z "$ARCH" ]; then
   esac
 fi
 
-wget -c http://pub.mate-desktop.org/releases/1.19/$PRGNAM-$VERSION.tar.xz
+wget -c http://pub.mate-desktop.org/releases/1.20/$PRGNAM-$VERSION.tar.xz
 
 CWD=$(pwd)
 TMP=${TMP:-/tmp/msb}