diff --git a/setup.py b/setup.py
index 3a430c3..b2aa9dd 100644
--- a/setup.py
+++ b/setup.py
@@ -34,7 +34,7 @@ setuptools.setup(
     platforms=["unix", "linux", "osx"],
     classifiers=classifiers,
     install_requires=[
-        "pycryptodome>=3.8.2,<4.0.0",
+        "pycryptodome>=3.9.2,<4.0.0",
         "base58>=1.0.3,<2.0.0",
         "pymultihash>=0.8.2",
         "multiaddr>=0.0.8,<0.1.0",