--- rpl/configure.ac	2021/12/16 10:00:39	1.265
+++ rpl/configure.ac	2021/12/16 10:02:48	1.266
@@ -9,7 +9,7 @@ AC_CONFIG_HEADERS([rplconfig.h])
 dnl Libraries
 NCURSES=ncurses-6.1
 READLINE=readline-8.1
-UNITS=units-2.19
+UNITS=units-2.21
 GSL=gsl-2.7.1
 GPP=gpp-3.0
 GNUPLOT=gnuplot-5.4.2