diff --git a/test/filter1d/mfilter.sh b/test/filter1d/mfilter.sh
index 7271266a4c4..f47e2127413 100755
--- a/test/filter1d/mfilter.sh
+++ b/test/filter1d/mfilter.sh
@@ -2,7 +2,8 @@
 # Get and filter the Keeling curve with monthly averages
 ps=mfilter.ps
 gmt set MAP_ANNOT_ORTHO "" FORMAT_TIME_PRIMARY_MAP Abbreviated FORMAT_DATE_MAP o
-URL=https://scrippsco2.ucsd.edu/assets/data/atmospheric/stations/in_situ_co2/weekly/weekly_in_situ_co2_mlo.csv
+#URL=https://scrippsco2.ucsd.edu/assets/data/atmospheric/stations/in_situ_co2/weekly/weekly_in_situ_co2_mlo.csv
+URL=https://keelinglabsites.ucsd.edu/websitedataco2/weekly_in_situ_co2_mlo.csv
 gmt filter1d $URL -T1o+t -Fg30 --TIME_UNIT=d -f0T --IO_HEADER_MARKER=\" > monthly.txt
 gmt psxy -R1958T/2018T/300/430 -JX6iT/4i -Bxa10Yf5y -Byaf+u" ppm" -BWSne -W0.25p monthly.txt -P -K -Xc > $ps
 gmt psxy -R2012T/2013T/380/410 -J -Bsxa1Y -Bpxa1Og1o -Byaf+u" ppm" -BWSne+t"Keeling CO@-2@- curve" $URL -Sc0.2c -Gred -O -K -Y4.75i --IO_HEADER_MARKER=\" >> $ps