diff --git a/pkgs/by-name/yu/yubikey-manager/package.nix b/pkgs/by-name/yu/yubikey-manager/package.nix
index c9047d500930..22395b761736 100644
--- a/pkgs/by-name/yu/yubikey-manager/package.nix
+++ b/pkgs/by-name/yu/yubikey-manager/package.nix
@@ -43,6 +43,10 @@ python3Packages.buildPythonPackage rec {
     python-pskc
   ];
 
+  pythonRelaxDeps = [
+    "cryptography"
+  ];
+
   postInstall = ''
     installManPage man/ykman.1
   ''