diff --git a/requirements.txt b/requirements.txt
index 86a33b9..4b73c54 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pycryptodomex==3.7.1
+pycryptodomex==3.19.1
 pysha3==1.0.2
 salsa20==0.3.0
 scrypt==0.8.6
diff --git a/setup.py b/setup.py
index 67f9a42..7106b7d 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@
                    'Topic :: Security :: Cryptography',
                    'Topic :: Software Development :: Libraries'],
     long_description = open('README.rst').read(),
-    install_requires = ["pycryptodomex==3.7.1",
+    install_requires = ["pycryptodomex==3.19.1",
                         "scrypt==0.8.6",
                         "six==1.11.0",
                         "pysha3==1.0.2",