diff --git a/src/version.h b/src/version.h
index 5ae7b7b9..b8549648 100644
--- a/src/version.h
+++ b/src/version.h
@@ -17,4 +17,4 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-# define VERSION	"DGD 1.6.20"
+# define VERSION	"DGD 1.6.21"