diff --git a/tests/run_tests.sh b/tests/run_tests.sh
index 25e5125..9ef0cbd 100755
--- a/tests/run_tests.sh
+++ b/tests/run_tests.sh
@@ -40,7 +40,7 @@
     virtualenv $VENV_DIR
     source ${VENV_DIR}/bin/activate
     python -m pip install salt${PIP_SALT_VERSION}
-    python -m pip install reno
+    python -m pip install reno 'msgpack<1' 'setuptools<45'
 }
 
 setup_mock_bin() {