diff --git a/requirements/crypto.txt b/requirements/crypto.txt
index 9a62bb31f8..acdfd2028e 100644
--- a/requirements/crypto.txt
+++ b/requirements/crypto.txt
@@ -1,2 +1 @@
-pycrypto>=2.6.1; sys.platform not in 'win32,darwin'
-pycryptodomex; sys.platform == 'win32'
+pycryptodomex