diff --git a/.gitignore b/.gitignore
index 45f774c..adad0cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
 tmp.json
+*.bak
diff --git a/t/20_client_sim-data_up_to_date.t b/t/20_client_sim-data_up_to_date.t
new file mode 100755
index 0000000..2e12da4
--- /dev/null
+++ b/t/20_client_sim-data_up_to_date.t
@@ -0,0 +1,11 @@
+#!/usr/bin/env perl
+
+use strict;
+use Test::More tests => 2;
+
+
+my $outdated=`find include/client_sim.data -mtime 14d`;
+ok($outdated eq "","include/client_sim.data should be no older then 14 days, run utils/update_client_sim_data.pl to correct"); 
+my $newer=`find utils/update_client_sim_data.pl -newer include/client_sim.data`;
+ok($newer eq "","utils/update_client_sim_data.pl should not be newer then include/client_sim.data, run utils/update_client_sim_data.pl to correct");
+done_testing;
\ No newline at end of file
diff --git a/t/02_client_sims_old.t b/t/21_client_sims_old.t
similarity index 100%
rename from t/02_client_sims_old.t
rename to t/21_client_sims_old.t
diff --git a/t/03_client_sims_intermediate.t b/t/22_client_sims_intermediate.t
similarity index 100%
rename from t/03_client_sims_intermediate.t
rename to t/22_client_sims_intermediate.t
diff --git a/t/04_client_sims_modern.t b/t/23_client_sims_modern.t
similarity index 100%
rename from t/04_client_sims_modern.t
rename to t/23_client_sims_modern.t
diff --git a/t/05_client_sims_testssl.sh.t b/t/24_client_sims_testssl.sh.t
similarity index 100%
rename from t/05_client_sims_testssl.sh.t
rename to t/24_client_sims_testssl.sh.t
diff --git a/t/06_client_sims_starttls.t b/t/25_client_sims_starttls.t
similarity index 100%
rename from t/06_client_sims_starttls.t
rename to t/25_client_sims_starttls.t