diff --git a/travis_ci/install_zmq.sh b/travis_ci/install_zmq.sh
index 532b14b..1b5cc5e 100755
--- a/travis_ci/install_zmq.sh
+++ b/travis_ci/install_zmq.sh
@@ -3,7 +3,7 @@
 # Tests the build distribution
 
 
-ZMQ_TGZ="zeromq-4.1.1.tar.gz"
+ZMQ_TGZ="zeromq-4.0.6.tar.gz"
 
 export C_INCLUDE_PATH=${C_INCLUDE_PATH}:./