diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 941d8bdfb..f04ab34fe 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -63,7 +63,7 @@ jobs:
           - build: macos
             os: macos-latest
             rust: stable
-            target: x86_64-apple-darwin
+            target: aarch64-apple-darwin
           - build: win32
             os: windows-latest
             rust: stable
diff --git a/Cargo.toml b/Cargo.toml
index 8363b00e4..27422b0cb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "curl"
-version = "0.4.48"
+version = "0.4.49"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT"
 repository = "https://github.com/alexcrichton/curl-rust"
@@ -14,11 +14,11 @@ edition = "2018"
 
 [dependencies]
 libc = "0.2.42"
-curl-sys = { path = "curl-sys", version = "0.4.77", default-features = false }
+curl-sys = { path = "curl-sys", version = "0.4.83", default-features = false }
 socket2 = "0.6.0"
 
 # Unix platforms use OpenSSL for now to provide SSL functionality
-[target.'cfg(all(unix, not(target_os = "macos")))'.dependencies]
+[target.'cfg(all(unix))'.dependencies]
 openssl-sys = { version = "0.9.64", optional = true }
 openssl-probe = { version = "0.1.2", optional = true }
 
diff --git a/curl-sys/Cargo.toml b/curl-sys/Cargo.toml
index 3286b01d1..4b70da201 100644
--- a/curl-sys/Cargo.toml
+++ b/curl-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "curl-sys"
-version = "0.4.82+curl-8.14.1"
+version = "0.4.83+curl-8.15.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 links = "curl"
 build = "build.rs"
@@ -26,7 +26,7 @@ version = "0.15"
 optional = true
 features = ["no_log_capture"]
 
-[target.'cfg(all(unix, not(target_os = "macos")))'.dependencies]
+[target.'cfg(all(unix))'.dependencies]
 openssl-sys = { version = "0.9.64", optional = true }
 
 [target.'cfg(windows)'.dependencies]
diff --git a/curl-sys/build.rs b/curl-sys/build.rs
index db930c316..433a6c519 100644
--- a/curl-sys/build.rs
+++ b/curl-sys/build.rs
@@ -108,7 +108,7 @@ fn main() {
             .replace("@LIBCURL_LIBS@", "")
             .replace("@SUPPORT_FEATURES@", "")
             .replace("@SUPPORT_PROTOCOLS@", "")
-            .replace("@CURLVERSION@", "8.14.1"),
+            .replace("@CURLVERSION@", "8.15.0"),
     )
     .unwrap();
 
@@ -162,11 +162,13 @@ fn main() {
         .file("curl/lib/curl_trc.c")
         .file("curl/lib/curlx/base64.c")
         .file("curl/lib/curlx/dynbuf.c")
+        .file("curl/lib/curlx/inet_ntop.c")
         .file("curl/lib/curlx/inet_pton.c")
         .file("curl/lib/curlx/nonblock.c")
         .file("curl/lib/curlx/strparse.c")
         .file("curl/lib/curlx/timediff.c")
         .file("curl/lib/curlx/timeval.c")
+        .file("curl/lib/curlx/wait.c")
         .file("curl/lib/curlx/warnless.c")
         .file("curl/lib/cw-out.c")
         .file("curl/lib/cw-pause.c")
@@ -194,7 +196,6 @@ fn main() {
         .file("curl/lib/http_proxy.c")
         .file("curl/lib/idn.c")
         .file("curl/lib/if2ip.c")
-        .file("curl/lib/inet_ntop.c")
         .file("curl/lib/llist.c")
         .file("curl/lib/macos.c")
         .file("curl/lib/md5.c")
@@ -333,23 +334,12 @@ fn main() {
                 .file("curl/lib/http_negotiate.c")
                 .file("curl/lib/curl_sspi.c")
                 .file("curl/lib/socks_sspi.c")
+                .file("curl/lib/vauth/krb5_sspi.c")
                 .file("curl/lib/vauth/spnego_sspi.c")
                 .file("curl/lib/vauth/vauth.c")
                 .file("curl/lib/vtls/schannel.c")
                 .file("curl/lib/vtls/schannel_verify.c")
                 .file("curl/lib/vtls/x509asn1.c");
-        } else if target.contains("-apple-") {
-            cfg.define("USE_SECTRANSP", None)
-                .file("curl/lib/vtls/cipher_suite.c")
-                .file("curl/lib/vtls/sectransp.c")
-                .file("curl/lib/vtls/x509asn1.c");
-            if xcode_major_version().map_or(true, |v| v >= 9) {
-                // On earlier Xcode versions (<9), defining HAVE_BUILTIN_AVAILABLE
-                // would cause __bultin_available() to fail to compile due to
-                // unrecognized platform names, so we try to check for Xcode
-                // version first (if unknown, assume it's recent, as in >= 9).
-                cfg.define("HAVE_BUILTIN_AVAILABLE", "1");
-            }
         } else {
             cfg.define("USE_OPENSSL", None)
                 .file("curl/lib/vtls/openssl.c");
@@ -562,24 +552,6 @@ fn try_pkg_config() -> bool {
     true
 }
 
-fn xcode_major_version() -> Option<u8> {
-    let status = Command::new("xcode-select").arg("-p").status().ok()?;
-    if status.success() {
-        let output = Command::new("xcodebuild").arg("-version").output().ok()?;
-        if output.status.success() {
-            let stdout = String::from_utf8_lossy(&output.stdout);
-            println!("xcode version: {}", stdout);
-            let mut words = stdout.split_whitespace();
-            if words.next()? == "Xcode" {
-                let version = words.next()?;
-                return version[..version.find('.')?].parse().ok();
-            }
-        }
-    }
-    println!("unable to determine Xcode version, assuming >= 9");
-    None
-}
-
 fn curl_config_reports_http2() -> bool {
     let output = Command::new("curl-config").arg("--features").output();
     let output = match output {
diff --git a/curl-sys/curl b/curl-sys/curl
index fdb8a789d..cfbfb6504 160000
--- a/curl-sys/curl
+++ b/curl-sys/curl
@@ -1 +1 @@
-Subproject commit fdb8a789d2b446b77bd7cdd2eff95f6cbc814cf4
+Subproject commit cfbfb65047e85e6b08af65fe9cdbcf68e9ad496a