diff --git a/platformio.ini b/platformio.ini
index cb36e412e..85505d63a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -93,8 +93,8 @@ build_src_filter = ${env.build_src_filter} -<platform/portduino/> -<graphics/nic
 ; Common libs for communicating over TCP/IP networks such as MQTT
 [networking_base]
 lib_deps =
-	# renovate: datasource=custom.pio depName=PubSubClient packageName=knolleary/library/PubSubClient
-	knolleary/PubSubClient@2.8
+	# renovate: datasource=custom.pio depName=TBPubSubClient packageName=thingsboard/library/TBPubSubClient
+	thingsboard/TBPubSubClient@2.12.1
 	# renovate: datasource=custom.pio depName=NTPClient packageName=arduino-libraries/library/NTPClient
 	arduino-libraries/NTPClient@3.2.1
 	# renovate: datasource=custom.pio depName=Syslog packageName=arcao/library/Syslog
diff --git a/src/mqtt/MQTT.cpp b/src/mqtt/MQTT.cpp
index 799f953b4..fb92789ee 100644
--- a/src/mqtt/MQTT.cpp
+++ b/src/mqtt/MQTT.cpp
@@ -281,7 +281,7 @@ struct PubSubConfig {
 #if HAS_NETWORKING
 bool connectPubSub(const PubSubConfig &config, PubSubClient &pubSub, Client &client)
 {
-    pubSub.setBufferSize(1024);
+    pubSub.setBufferSize(1024, 1024);
     pubSub.setClient(client);
     pubSub.setServer(config.serverAddr.c_str(), config.serverPort);