Try using cryptography~=3.3.2

Author: mayeut

requirements-dev.txt

@@ -16,7 +16,4 @@ wheeltools
 # need to pin cryptography for manylinux1 builds
 # cryptography only provides manylinux2010 wheels since 3.4.0
 # because of the lack of a decent rust compiler on manylinux1
-# Furthermore, the x86 has no wheels at all requiring to build
-# from source. Given OpenSSL version in the dockcross image, this
-# restrict cryptography version to 3.2.x
-cryptography~=3.2.1 ; sys_platform=="linux" and platform_machine in "i386, i486, i586, i686, x86_64"
+cryptography~=3.3.2 ; sys_platform=="linux" and platform_machine in "i386, i486, i586, i686, x86_64"