diff --git a/travis-install.sh b/travis-install.sh
index 440b1da8..30afc589 100755
--- a/travis-install.sh
+++ b/travis-install.sh
@@ -21,9 +21,9 @@ if [ "$TRAVIS_OS_NAME" == "osx" ]; then
 	# brew services stop mosquitto
 	# /usr/local/sbin/mosquitto -c test/tls-testing/mosquitto.conf &
 
-	brew install python3
+	brew upgrade python
 	git clone https://github.com/eclipse/paho.mqtt.testing.git
 	cd paho.mqtt.testing/interoperability
-	python3 startbroker.py -c localhost_testing.conf &
+	python startbroker.py -c localhost_testing.conf &
 	cd ../..
 fi