diff --git a/nix/unblob/default.nix b/nix/unblob/default.nix
index 0be6c88360..cd2055cdef 100644
--- a/nix/unblob/default.nix
+++ b/nix/unblob/default.nix
@@ -107,6 +107,7 @@ let
 
     pythonRelaxDeps = [
       "dissect.cstruct"
+      "lief"
       "structlog"
     ];