diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 99aa74348e5..3e5df0dddd7 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3490,8 +3490,8 @@ in {
   cryptography_vectors = buildPythonPackage rec {
       # also bump cryptography
     pname = "cryptography_vectors";
-    name = "${pname}${version}";
-    version = "1.8.1";
+    version = self.cryptography.version;
+    name = "${pname}-${version}";
 
     src = fetchPypi {
       inherit pname version;