diff --git a/curl-sys/Cargo.toml b/curl-sys/Cargo.toml
index 4d3b91828..3077fb487 100644
--- a/curl-sys/Cargo.toml
+++ b/curl-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "curl-sys"
-version = "0.4.80+curl-8.12.1"
+version = "0.4.80+curl-8.14.1"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 links = "curl"
 build = "build.rs"
@@ -22,7 +22,7 @@ libc = "0.2.2"
 libnghttp2-sys = { optional = true, version = "0.1.3" }
 
 [dependencies.rustls-ffi]
-version = "0.14"
+version = "0.15"
 optional = true
 features = ["no_log_capture"]
 
diff --git a/curl-sys/build.rs b/curl-sys/build.rs
index 89f431d9a..7d5af1d85 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@", "8.12.1"),
+            .replace("@CURLVERSION@", "8.14.1"),
     )
     .unwrap();
 
@@ -138,20 +138,21 @@ fn main() {
         .define("HAVE_LIBZ", None)
         .define("HAVE_BOOL_T", None)
         .define("HAVE_STDBOOL_H", None)
-        .file("curl/lib/asyn-thread.c")
         .file("curl/lib/altsvc.c")
-        .file("curl/lib/base64.c")
+        .file("curl/lib/asyn-base.c")
+        .file("curl/lib/asyn-thrdd.c")
         .file("curl/lib/bufq.c")
         .file("curl/lib/bufref.c")
-        .file("curl/lib/cfilters.c")
         .file("curl/lib/cf-h1-proxy.c")
         .file("curl/lib/cf-haproxy.c")
         .file("curl/lib/cf-https-connect.c")
         .file("curl/lib/cf-socket.c")
+        .file("curl/lib/cfilters.c")
         .file("curl/lib/conncache.c")
         .file("curl/lib/connect.c")
         .file("curl/lib/content_encoding.c")
         .file("curl/lib/cookie.c")
+        .file("curl/lib/cshutdn.c")
         .file("curl/lib/curl_addrinfo.c")
         .file("curl/lib/curl_get_line.c")
         .file("curl/lib/curl_memrchr.c")
@@ -159,9 +160,17 @@ fn main() {
         .file("curl/lib/curl_sha512_256.c")
         .file("curl/lib/curl_threads.c")
         .file("curl/lib/curl_trc.c")
+        .file("curl/lib/curlx/base64.c")
+        .file("curl/lib/curlx/dynbuf.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/warnless.c")
         .file("curl/lib/cw-out.c")
+        .file("curl/lib/cw-pause.c")
         .file("curl/lib/doh.c")
-        .file("curl/lib/dynbuf.c")
         .file("curl/lib/dynhds.c")
         .file("curl/lib/easy.c")
         .file("curl/lib/escape.c")
@@ -174,7 +183,6 @@ fn main() {
         .file("curl/lib/hash.c")
         .file("curl/lib/headers.c")
         .file("curl/lib/hmac.c")
-        .file("curl/lib/hostasyn.c")
         .file("curl/lib/hostip.c")
         .file("curl/lib/hostip6.c")
         .file("curl/lib/hsts.c")
@@ -187,16 +195,15 @@ fn main() {
         .file("curl/lib/idn.c")
         .file("curl/lib/if2ip.c")
         .file("curl/lib/inet_ntop.c")
-        .file("curl/lib/inet_pton.c")
         .file("curl/lib/llist.c")
+        .file("curl/lib/macos.c")
         .file("curl/lib/md5.c")
         .file("curl/lib/mime.c")
-        .file("curl/lib/macos.c")
         .file("curl/lib/mprintf.c")
         .file("curl/lib/mqtt.c")
         .file("curl/lib/multi.c")
+        .file("curl/lib/multi_ev.c")
         .file("curl/lib/netrc.c")
-        .file("curl/lib/nonblock.c")
         .file("curl/lib/noproxy.c")
         .file("curl/lib/parsedate.c")
         .file("curl/lib/progress.c")
@@ -209,35 +216,33 @@ fn main() {
         .file("curl/lib/sha256.c")
         .file("curl/lib/share.c")
         .file("curl/lib/slist.c")
-        .file("curl/lib/socks.c")
         .file("curl/lib/socketpair.c")
+        .file("curl/lib/socks.c")
         .file("curl/lib/speedcheck.c")
         .file("curl/lib/splay.c")
         .file("curl/lib/strcase.c")
         .file("curl/lib/strdup.c")
+        .file("curl/lib/strequal.c")
         .file("curl/lib/strerror.c")
-        .file("curl/lib/strparse.c")
-        .file("curl/lib/strtok.c")
-        .file("curl/lib/strtoofft.c")
-        .file("curl/lib/timeval.c")
         .file("curl/lib/transfer.c")
+        .file("curl/lib/uint-bset.c")
+        .file("curl/lib/uint-spbset.c")
+        .file("curl/lib/uint-table.c")
         .file("curl/lib/url.c")
         .file("curl/lib/urlapi.c")
-        .file("curl/lib/version.c")
         .file("curl/lib/vauth/digest.c")
         .file("curl/lib/vauth/vauth.c")
+        .file("curl/lib/version.c")
         .file("curl/lib/vquic/curl_msh3.c")
         .file("curl/lib/vquic/curl_ngtcp2.c")
         .file("curl/lib/vquic/curl_osslq.c")
         .file("curl/lib/vquic/curl_quiche.c")
-        .file("curl/lib/vquic/vquic.c")
         .file("curl/lib/vquic/vquic-tls.c")
+        .file("curl/lib/vquic/vquic.c")
         .file("curl/lib/vtls/hostcheck.c")
         .file("curl/lib/vtls/keylog.c")
         .file("curl/lib/vtls/vtls.c")
         .file("curl/lib/vtls/vtls_scache.c")
-        .file("curl/lib/warnless.c")
-        .file("curl/lib/timediff.c")
         .file("curl/lib/ws.c")
         .define("HAVE_GETADDRINFO", None)
         .define("HAVE_GETPEERNAME", None)
@@ -296,6 +301,7 @@ fn main() {
         cfg.define("USE_RUSTLS", None)
             .file("curl/lib/vtls/cipher_suite.c")
             .file("curl/lib/vtls/rustls.c")
+            .file("curl/lib/vtls/x509asn1.c")
             .include(env::var_os("DEP_RUSTLS_FFI_INCLUDE").unwrap());
     } else if cfg!(feature = "windows-static-ssl") {
         if windows {
@@ -362,9 +368,10 @@ fn main() {
             .define("USE_WINSOCK", None)
             .file("curl/lib/bufref.c")
             .file("curl/lib/system_win32.c")
-            .file("curl/lib/version_win32.c")
             .file("curl/lib/vauth/digest_sspi.c")
-            .file("curl/lib/curl_multibyte.c");
+            .file("curl/lib/curlx/multibyte.c")
+            .file("curl/lib/curlx/version_win32.c")
+            .file("curl/lib/curlx/winapi.c");
 
         if cfg!(feature = "spnego") {
             cfg.file("curl/lib/vauth/spnego_sspi.c");
diff --git a/curl-sys/curl b/curl-sys/curl
index 57495c648..fdb8a789d 160000
--- a/curl-sys/curl
+++ b/curl-sys/curl
@@ -1 +1 @@
-Subproject commit 57495c64871d18905a0941db9196ef90bafe9a29
+Subproject commit fdb8a789d2b446b77bd7cdd2eff95f6cbc814cf4
diff --git a/systest/build.rs b/systest/build.rs
index a9527a0dd..9c2fb8329 100644
--- a/systest/build.rs
+++ b/systest/build.rs
@@ -72,10 +72,7 @@ fn main() {
     cfg.skip_const(move |s| {
         if version < (8, 10) {
             match s {
-                "CURLVERSION_TWELFTH"
-                | "CURLVERSION_NOW"
-                | "CURLOPT_WRITEINFO"
-                | "CURLOPT_CLOSEPOLICY" => return true,
+                "CURLVERSION_TWELFTH" | "CURLVERSION_NOW" => return true,
                 _ => {}
             }
         }
@@ -261,12 +258,20 @@ fn main() {
             }
         }
 
-        // OSX doesn't have this yet
-        s == "CURLSSLOPT_NO_REVOKE" ||
-
-        // A lot of curl versions doesn't support unix sockets
-        s == "CURLOPT_UNIX_SOCKET_PATH" || s == "CURL_VERSION_UNIX_SOCKETS" || s ==
-            "CURLOPT_ABSTRACT_UNIX_SOCKET"
+        match s {
+            // OSX doesn't have this yet
+            "CURLSSLOPT_NO_REVOKE"
+            // A lot of curl versions doesn't support unix sockets
+            | "CURLOPT_UNIX_SOCKET_PATH"
+            | "CURL_VERSION_UNIX_SOCKETS"
+            | "CURLOPT_ABSTRACT_UNIX_SOCKET"
+            // These two are deprecated, and their value changed in 8.10.
+            // Systest generates deprecated warnings which isn't helpful.
+            // These should be removed in the next semver major bump.
+            | "CURLOPT_WRITEINFO"
+            | "CURLOPT_CLOSEPOLICY" => true,
+            _ => false,
+        }
     });
 
     if cfg!(target_env = "msvc") {