--- rpl/configure.ac	2016/08/26 08:57:55	1.159
+++ rpl/configure.ac	2016/09/21 09:38:46	1.160
@@ -11,7 +11,7 @@ dnl Libraries
 NCURSES=ncurses-6.0
 READLINE=readline-6.3
 UNITS=units-2.13
-GSL=gsl-2.1
+GSL=gsl-2.2.1
 GPP=gpp-3.0
 GNUPLOT=gnuplot-5.0.3
 FILE=file-5.28