diff --git a/plugins/inputs/syslog/testcases/rfc3164_best_effort_udp/expected.out b/plugins/inputs/syslog/testcases/rfc3164_best_effort_udp/expected.out
index 9c5ee5e3da029..7112b0d008de1 100644
--- a/plugins/inputs/syslog/testcases/rfc3164_best_effort_udp/expected.out
+++ b/plugins/inputs/syslog/testcases/rfc3164_best_effort_udp/expected.out
@@ -1 +1 @@
-syslog,appname=app,facility=user,hostname=host,severity=notice,source=127.0.0.1 facility_code=1i,message="Test",severity_code=5i,timestamp=1733157063000000000i 0
+syslog,appname=app,facility=user,hostname=host,severity=notice,source=127.0.0.1 facility_code=1i,message="Test",severity_code=5i,timestamp=1764693063000000000i 0
diff --git a/plugins/inputs/syslog/testcases/rfc3164_strict_udp/expected.out b/plugins/inputs/syslog/testcases/rfc3164_strict_udp/expected.out
index 9c5ee5e3da029..7112b0d008de1 100644
--- a/plugins/inputs/syslog/testcases/rfc3164_strict_udp/expected.out
+++ b/plugins/inputs/syslog/testcases/rfc3164_strict_udp/expected.out
@@ -1 +1 @@
-syslog,appname=app,facility=user,hostname=host,severity=notice,source=127.0.0.1 facility_code=1i,message="Test",severity_code=5i,timestamp=1733157063000000000i 0
+syslog,appname=app,facility=user,hostname=host,severity=notice,source=127.0.0.1 facility_code=1i,message="Test",severity_code=5i,timestamp=1764693063000000000i 0