diff --git a/Cargo.lock b/Cargo.lock
index 746665d45d1..97209e2775f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5847,6 +5847,6 @@ dependencies = [
 
 [[package]]
 name = "zlib-rs"
-version = "0.5.4"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51f936044d677be1a1168fae1d03b583a285a5dd9d8cbf7b24c23aa1fc775235"
+checksum = "40990edd51aae2c2b6907af74ffb635029d5788228222c4bb811e9351c0caad3"
diff --git a/gix-features/Cargo.toml b/gix-features/Cargo.toml
index b052120b436..968b03dd781 100644
--- a/gix-features/Cargo.toml
+++ b/gix-features/Cargo.toml
@@ -108,7 +108,7 @@ bytesize = { version = "2.3.1", optional = true }
 bytes = { version = "1.0.0", optional = true }
 
 # zlib module
-zlib-rs = { version = "0.5.4", optional = true }
+zlib-rs = { version = "0.5.5", optional = true }
 thiserror = { version = "2.0.17", optional = true }
 
 # Note: once_cell is kept for OnceCell type because std::sync::OnceLock::get_or_try_init() is not yet stable.