diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a2b3415..f131f22d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -110,6 +110,7 @@
 - Dev: Added CMake build option `BUILD_WITH_QTKEYCHAIN` to build with or without Qt5Keychain support (On by default). (#3318)
 - Dev: Added /fakemsg command for debugging (#3448)
 - Dev: Notebook::select\* functions now take an optional `focusPage` parameter (true by default) which keeps the default behaviour of selecting the page after it has been selected. If set to false, the page is _not_ focused after being selected. (#3446)
+- Dev: Updated PubSub client to use TLS v1.2 (#3599)
 - Dev: Use system logical core count for Ubuntu/macOS GitHub actions builds. (#3602)
 
 ## 2.3.4
diff --git a/src/providers/twitch/PubsubClient.cpp b/src/providers/twitch/PubsubClient.cpp
index e27529cc..153603f6 100644
--- a/src/providers/twitch/PubsubClient.cpp
+++ b/src/providers/twitch/PubsubClient.cpp
@@ -1178,7 +1178,7 @@ void PubSub::onConnectionClose(WebsocketHandle hdl)
 PubSub::WebsocketContextPtr PubSub::onTLSInit(websocketpp::connection_hdl hdl)
 {
     WebsocketContextPtr ctx(
-        new boost::asio::ssl::context(boost::asio::ssl::context::tlsv1));
+        new boost::asio::ssl::context(boost::asio::ssl::context::tlsv12));
 
     try
     {