diff --git a/setup.py b/setup.py
index 8474f9d..b6135d3 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@
       maintainer_email='misterionkell@gmail.com',
       keywords=['Redis', 'Memory Profiler'],
       license='MIT',
-      install_requires=['redis', 'tabulate', 'tqdm', 'msgpack-python'],
+      install_requires=['redis', 'tabulate', 'tqdm', 'msgpack-python>=0.4.7,<0.5.0'],
       include_package_data=True,
       packages=['rma', 'rma.helpers', 'rma.reporters', 'rma.rule', 'rma.cli'],
       python_requires='>3.5',