diff --git a/crates/kingfisher-core/Cargo.toml b/crates/kingfisher-core/Cargo.toml
index 05d6fd5..307ea54 100644
--- a/crates/kingfisher-core/Cargo.toml
+++ b/crates/kingfisher-core/Cargo.toml
@@ -39,7 +39,7 @@ bstr.workspace = true
 memchr = "2.7"
 
 # Git types (minimal, for ObjectId and Time)
-gix = { version = "0.81", default-features = false, features = ["serde"] }
+gix = { version = "0.81", default-features = false, features = ["serde", "sha1"] }
 
 # Console formatting
 console = "0.16"