diff --git a/etc/client-simulation.txt b/etc/client-simulation.txt
index 98c6e69..3bc37c5 100644
--- a/etc/client-simulation.txt
+++ b/etc/client-simulation.txt
@@ -2218,6 +2218,28 @@
      requiresSha2+=(false)
      current+=(true)
 
+     names+=("Safari 12.1 (macOS 10.13.6)")
+     short+=("safari_121_osx_10136")
+     ciphers+=("ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-CHACHA20-POLY1305:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA")
+     ciphersuites+=("")
+     sni+=("$SNI")
+     warning+=("")
+     handshakebytes+=("16030100e3010000df03039c6af5b589ea930473487870a111e2088f4c71c4497310945d571b318f259f47000028c02cc02bc024c023c00ac009cca9c030c02fc028c027c014c013cca8009d009c003d003c0035002f0100008eff0100010000000010000e00000b6369706865726c692e737400170000000d00140012040308040401050308050501080606010201000500050100000000337400000012000000100030002e0268320568322d31360568322d31350568322d313408737064792f332e3106737064792f3308687474702f312e31000b00020100000a000a0008001d001700180019")
+     protos+=("-no_ssl3 -no_ssl2")
+     tlsvers+=("-tls1_2 -tls1_1 -tls1")
+     lowest_protocol+=("0x0301")
+     highest_protocol+=("0x0303")
+     alpn+=("h2,http/1.1")
+     service+=("HTTP")
+     curves+=("X25519:secp256r1:secp384r1:secp521r1")
+     minDhBits+=(1024)
+     maxDhBits+=(-1)
+     minRsaBits+=(-1)
+     maxRsaBits+=(-1)
+     minEcdsaBits+=(-1)
+     requiresSha2+=(false)
+     current+=(true)
+
      names+=("Apple ATS 9 iOS 9")
      short+=("apple_ats_9_ios9")
      ciphers+=("ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA")
diff --git a/etc/client-simulation.wiresharked.txt b/etc/client-simulation.wiresharked.txt
index 354e22c..17c02f1 100644
--- a/etc/client-simulation.wiresharked.txt
+++ b/etc/client-simulation.wiresharked.txt
@@ -308,3 +308,25 @@
      minEcdsaBits+=(-1)
      requiresSha2+=(false)
      current+=(true)
+
+     names+=("Safari 12.1 (macOS 10.13.6)")
+     short+=("safari_121_osx_10136")
+     ciphers+=("ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-CHACHA20-POLY1305:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA")
+     ciphersuites+=("")
+     sni+=("$SNI")
+     warning+=("")
+     handshakebytes+=("16030100e3010000df03039c6af5b589ea930473487870a111e2088f4c71c4497310945d571b318f259f47000028c02cc02bc024c023c00ac009cca9c030c02fc028c027c014c013cca8009d009c003d003c0035002f0100008eff0100010000000010000e00000b6369706865726c692e737400170000000d00140012040308040401050308050501080606010201000500050100000000337400000012000000100030002e0268320568322d31360568322d31350568322d313408737064792f332e3106737064792f3308687474702f312e31000b00020100000a000a0008001d001700180019")
+     protos+=("-no_ssl3 -no_ssl2")
+     tlsvers+=("-tls1_2 -tls1_1 -tls1")
+     lowest_protocol+=("0x0301")
+     highest_protocol+=("0x0303")
+     alpn+=("h2,http/1.1")
+     service+=("HTTP")
+     curves+=("X25519:secp256r1:secp384r1:secp521r1")
+     minDhBits+=(1024)
+     maxDhBits+=(-1)
+     minRsaBits+=(-1)
+     maxRsaBits+=(-1)
+     minEcdsaBits+=(-1)
+     requiresSha2+=(false)
+     current+=(true)