Index: pep440-rs/Cargo.toml
===================================================================
--- pep440-rs.orig/Cargo.toml
+++ pep440-rs/Cargo.toml
@@ -36,10 +36,6 @@ crate-type = [
 [dependencies.once_cell]
 version = "1.19.0"
 
-[dependencies.pubgrub]
-version = "0.2.1"
-optional = true
-
 [dependencies.pyo3]
 version = "0.22"
 features = [
