diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 74b00ad6ff2..8201d2bb43e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8774,7 +8774,8 @@ in {
       sha256 = "1z27wdxs5rj5xhhqfzvzn3yg682irkxw6dcs5jj7mcf97psk8gd8";
     };
 
-    buildInputs = with self; [ nose pybcrypt];
+    buildInputs = with self; [ nose ];
+    propagatedBuildInputs = with self; [ bcrypt ];
 
     meta = {
       description = "A password hashing library for Python";