Build against system-provided zlib library.

diff --git a/Cargo.lock b/Cargo.lock
index d096dcc..f59c64d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -348,6 +348,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
 dependencies = [
  "crc32fast",
+ "libz-sys",
  "miniz_oxide",
 ]
 
@@ -618,6 +619,17 @@ version = "0.2.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b00cc1c228a6782d0f076e7b232802e0c5689d41bb5df366f2a6b6621cfdfe1"
 
+[[package]]
+name = "libz-sys"
+version = "1.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56ee889ecc9568871456d42f603d6a0ce59ff328d291063a45cbdf0036baf6db"
+dependencies = [
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.3.8"
diff --git a/duckscript_sdk/Cargo.toml b/duckscript_sdk/Cargo.toml
index bd276ca..459bfed 100644
--- a/duckscript_sdk/Cargo.toml
+++ b/duckscript_sdk/Cargo.toml
@@ -24,7 +24,7 @@ include = [
 
 [dependencies]
 attohttpc = { version = "^0.25", default-features = false, features = [
-  "compress",
+  "compress-zlib",
 ] }
 base64 = "^0.21"
 cfg-if = "^1"
@@ -49,7 +49,7 @@ which = { version = "^4", default-features = false }
 whoami = "^1"
 zip = { version = "^0.6", default-features = false, features = [
   "bzip2",
-  "deflate",
+  "deflate-zlib",
   "time",
 ] }