diff --git a/Cargo.lock b/Cargo.lock
index c38e6a9..486d140 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -391,15 +391,6 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cbd0f76e066e64fdc5631e3bb46381254deab9ef1158292f27c8c57e3bf3fe59"
 
-[[package]]
-name = "cmake"
-version = "0.1.51"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb1e43aa7fd152b1f968787f7dbcdeb306d1867ff373c69955211876c053f91a"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "comrak"
 version = "0.28.0"
@@ -747,7 +738,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1b589b4dc103969ad3cf85c950899926ec64300a1a46d76c03a6072957036f0"
 dependencies = [
  "crc32fast",
- "libz-ng-sys",
  "miniz_oxide",
 ]
 
@@ -1805,16 +1795,6 @@ dependencies = [
  "libz-sys",
 ]
 
-[[package]]
-name = "libz-ng-sys"
-version = "1.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4436751a01da56f1277f323c80d584ffad94a3d14aecd959dd0dff75aa73a438"
-dependencies = [
- "cmake",
- "libc",
-]
-
 [[package]]
 name = "libz-sys"
 version = "1.1.20"
diff --git a/Cargo.toml b/Cargo.toml
index 568390a..0dc0d07 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,11 +31,10 @@ clap = { version = "4.4.10", default-features = false, features = [
 comrak = { version = "0.28.0", default-features = false }
 const-hex = "1.12"
 const_format = "0.2"
-flate2 = { version = "1.0", default-features = false, features = ["zlib-ng"] }
+flate2 = "1.0"
 futures-util = "0.3"
 gix = { version = "0.66", default-features = false, features = [
   "fast-sha1",
-  "zlib-ng",
   "tracing",
   "parallel",
   "blob-diff",