TLS 1.3 only for rsyslog on Debian and CentOS

We have an existing rsyslog set up using TLS 1.2 We want to upgrade to TLS1.3 ONLY. I've read the other questions here, but when I set everything up, I get no logs. The result of "openssl ciphers -v | awk '{print $2}' | sort -u" is: SSLv3 TLSv1 TLSv1.2 TLSv1.3 In /etc/ssh/openssl.cnf I tried added both MinProtocol = TLSv1.3 and MaxProtocol = TLSv1.3. My rsyslogd -v is: rsyslogd 8.1901.0 (aka 2019.01) compiled with: PLATFORM: x86_64-pc-linux-gnu PLATFORM (lsb_release -d): FEATURE_REGEXP: Yes GSSAPI Kerberos 5 support: Yes FEATURE_DEBUG (debug build, slow code): No 32bit Atomic operations supported: Yes 64bit Atomic operations supported: Yes memory allocator: system default Runtime Instrumentation (slow code): No uuid support: Yes systemd support: Yes Number of Bits in RainerScript integers: 64 On the server side, my logserver.conf in /etc/rsyslog.d is: $DefaultNetstreamDriver gtls # certificate files $DefaultNetstreamDriverCAFile /etc/rsyslog-keys/ca.pem $DefaultNetstreamDriverCertFile /etc/rsyslog-keys/rsyslogServer-cert.pem $DefaultNetstreamDriverKeyFile /etc/rsyslog-keys/rsyslogServer-key.pem module(load="imtcp" StreamDriver.mode="1" StreamDriver.authmode="anon" gnutlsprioritystring="SECURE128:-VERS-TLS-ALL:+VERS-TLS1.3" ) Does anyone have any ideas about how I can force TLS 1.3 only on my system?