Index: dulwich/crates/pack/Cargo.toml
===================================================================
--- dulwich.orig/crates/pack/Cargo.toml
+++ dulwich/crates/pack/Cargo.toml
@@ -9,4 +9,4 @@ crate-type = ["cdylib"]
 [dependencies]
 pyo3 = { workspace = true, features = ["extension-module"]}
 memchr = "2"
-similar = "3"
+similar = "2"
