4 files changed, 4 insertions, 4 deletions
diff --git a/src/test/modules/commit_ts/t/001_base.pl b/src/test/modules/commit_ts/t/001_base.pl
index ae3fc5f52d2..d6ea0c4c692 100644
--- a/src/test/modules/commit_ts/t/001_base.pl
+++ b/src/test/modules/commit_ts/t/001_base.pl
@@ -4,7 +4,7 @@
 # Single-node test: value can be set, and is still present after recovery
 
 use strict;
-use warnings;
+use warnings FATAL => 'all';
 
 use PostgreSQL::Test::Utils;
 use Test::More;
diff --git a/src/test/modules/commit_ts/t/002_standby.pl b/src/test/modules/commit_ts/t/002_standby.pl
index 59cc2b1244b..e843578ddb2 100644
--- a/src/test/modules/commit_ts/t/002_standby.pl
+++ b/src/test/modules/commit_ts/t/002_standby.pl
@@ -4,7 +4,7 @@
 # Test simple scenario involving a standby
 
 use strict;
-use warnings;
+use warnings FATAL => 'all';
 
 use PostgreSQL::Test::Utils;
 use Test::More;
diff --git a/src/test/modules/commit_ts/t/003_standby_2.pl b/src/test/modules/commit_ts/t/003_standby_2.pl
index 5af511e369c..b38c3c0f268 100644
--- a/src/test/modules/commit_ts/t/003_standby_2.pl
+++ b/src/test/modules/commit_ts/t/003_standby_2.pl
@@ -4,7 +4,7 @@
 # Test primary/standby scenario where the track_commit_timestamp GUC is
 # repeatedly toggled on and off.
 use strict;
-use warnings;
+use warnings FATAL => 'all';
 
 use PostgreSQL::Test::Utils;
 use Test::More;
diff --git a/src/test/modules/commit_ts/t/004_restart.pl b/src/test/modules/commit_ts/t/004_restart.pl
index 8fe4bedb140..399268ebeee 100644
--- a/src/test/modules/commit_ts/t/004_restart.pl
+++ b/src/test/modules/commit_ts/t/004_restart.pl
@@ -3,7 +3,7 @@
 
 # Testing of commit timestamps preservation across restarts
 use strict;
-use warnings;
+use warnings FATAL => 'all';
 use PostgreSQL::Test::Cluster;
 use PostgreSQL::Test::Utils;
 use Test::More;