Index: maturin/Cargo.toml
===================================================================
--- maturin.orig/Cargo.toml
+++ maturin/Cargo.toml
@@ -75,7 +75,7 @@ python-pkginfo = "0.6.0"
 textwrap = "0.16.1"
 ignore = "0.4.20"
 itertools = ">=0.10"
-lddtree = "0.3.4"
+lddtree = ">=0.3"
 cc = "1.0.88"
 dunce = "1.0.2"
 normpath = "1.1.1"
