diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 34589883..9f4e9cfc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -304,9 +304,10 @@ jobs:
           python-version: 3.x
           architecture: ${{ matrix.platform.python-architecture || 'x64' }}
       - name: Install NASM
-        run: |
-          choco install nasm -y
-        shell: cmd
+        uses: ilammy/setup-nasm@v1
+        with:
+          version: "2.16.01"
+          from-source: "false"
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
diff --git a/Cargo.lock b/Cargo.lock
index 0a73473e..bd382ab8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1401,9 +1401,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.29.3"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "700d18fa267b73b9b521fd7e13580e2f446916f176cacee1ab63fcc8191f1655"
+checksum = "229ca13b8a15bb0d1487b81ab975bfcd97513416499a8312011b6036e42e0de4"
 dependencies = [
  "indexmap",
  "inventory",
@@ -1417,18 +1417,18 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.29.3"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b3fc0c4d08f6bb10e71fe39dfb9e2f59c6eb6854e22ec8092f50c69a4499adb"
+checksum = "70130e2b6dd1ee589a8788026a429561ca5c40fa7a2fa7914c2282eddae24700"
 dependencies = [
  "target-lexicon",
 ]
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.29.3"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfc0b8e19df29aad7086cf977bb0c2a2f143e30567eb113e9cf72b62ca698330"
+checksum = "5e7ff73c555c286d212d4ce7e5fbda845a973c4f61bd5f160f5f2c3c2a04d1c4"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -1436,26 +1436,26 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.29.3"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6100e8a4b5eba53afaa5ed078364851a0b2499c553a44c31026b929049b49dc6"
+checksum = "c46d2e5862c7bb8207e3b639f713dda3c499933444784154c11d013c5a691b60"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
  "quote",
- "syn 2.0.119",
+ "syn 3.0.5",
 ]
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.29.3"
+version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6143877a16e82b5a727b7127ff4cd86858a24a28d745d72f43e6f227c7b1bdb3"
+checksum = "38b89f066f2ae72a2aef52d1537ca2fcd104440ebfadee06e97aa90738a25b9b"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.119",
+ "syn 3.0.5",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index a7c5fe1c..ea83fda9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,7 +32,7 @@ derive-deftly = { version = "1.14.0", default-features = false, features = ["min
 pingora-runtime = "0.9.0"
 tokio = { version = "1.53.2", features = ["rt-multi-thread", "sync", "time", "net", "macros"] }
 tokio-util = { version = "0.7.18", features = ["rt"] }
-pyo3 = { version = "0.29.3", features = [
+pyo3 = { version = "0.30.1", features = [
     "indexmap",
     "multiple-pymethods",
     "extension-module",
diff --git a/src/buffer.rs b/src/buffer.rs
index 481e6143..7b3d8231 100644
--- a/src/buffer.rs
+++ b/src/buffer.rs
@@ -25,7 +25,7 @@ use wreq::header::{HeaderCaseName, HeaderName, HeaderValue};
 pub struct PyBuffer(BufferView);
 
 /// The exporter behind each memoryview; views keep it, and so its bytes, alive.
-#[pyclass(frozen, skip_from_py_object)]
+#[pyclass(frozen)]
 struct BufferView(Bytes);
 
 // ===== impl PyBuffer =====
diff --git a/src/client.rs b/src/client.rs
index 0b9ce475..cc1e2c3e 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -41,7 +41,7 @@ use crate::{
 
 /// An IP socket address.
 #[derive(Clone, Copy, PartialEq, Eq)]
-#[pyclass(eq, str, frozen, skip_from_py_object)]
+#[pyclass(eq, str, frozen)]
 pub struct SocketAddr(pub std::net::SocketAddr);
 
 #[pymethods]
@@ -210,7 +210,7 @@ struct Builder {
 /// A client for making HTTP requests.
 /// Unknown keyword arguments raise `TypeError` at call time.
 #[derive(Clone)]
-#[pyclass(subclass, frozen, skip_from_py_object)]
+#[pyclass(subclass, frozen)]
 pub struct Client {
     inner: wreq::Client,
     /// Runs this client's requests and response reads, keeping the runtime alive.
@@ -228,7 +228,7 @@ pub struct Client {
 /// A blocking client for making HTTP requests.
 /// Unknown keyword arguments raise `TypeError` when the function is called.
 #[derive(Default)]
-#[pyclass(name = "Client", subclass, frozen, skip_from_py_object)]
+#[pyclass(name = "Client", subclass, frozen)]
 pub struct BlockingClient(Client);
 
 // ===== impl Client =====
diff --git a/src/client/resp/http.rs b/src/client/resp/http.rs
index 7b5e1cd5..1796f8e5 100644
--- a/src/client/resp/http.rs
+++ b/src/client/resp/http.rs
@@ -32,7 +32,7 @@ use crate::{
 /// Reads take the body with [`Response::take_bytes`]: a buffered body of known length up to
 /// the read's limit finishes on the caller, the event loop or a blocking thread, and any other
 /// body is collected on the runtime by [`Response::collect_later`].
-#[pyclass(subclass, frozen, str, skip_from_py_object)]
+#[pyclass(subclass, frozen, str)]
 pub struct Response {
     uri: Uri,
     /// Response head; rebuilt responses share its extensions, including the connection's
@@ -70,7 +70,7 @@ enum BodyRead {
 }
 
 /// A blocking response from a request.
-#[pyclass(name = "Response", subclass, frozen, str, skip_from_py_object)]
+#[pyclass(name = "Response", subclass, frozen, str)]
 pub struct BlockingResponse(Response);
 
 /// Forbids connection reuse on drop unless disarmed by taking the parts. Held by
diff --git a/src/client/resp/stream.rs b/src/client/resp/stream.rs
index a0d1e75b..1b1ca12d 100644
--- a/src/client/resp/stream.rs
+++ b/src/client/resp/stream.rs
@@ -42,7 +42,7 @@ pub enum Frame {
 ///
 /// Sync and async iteration share [`Streamer::next`]; [`Iteration`] picks the ready frames
 /// the caller reads and the error that ends iteration.
-#[pyclass(subclass, frozen, skip_from_py_object)]
+#[pyclass(subclass, frozen)]
 pub struct Streamer {
     reader: Arc<Reader>,
     runtime: Runtime,
diff --git a/src/header.rs b/src/header.rs
index aecbbf63..efd1db38 100644
--- a/src/header.rs
+++ b/src/header.rs
@@ -13,12 +13,12 @@ use crate::{
 
 /// An HTTP header map whose names and values are exposed as read-only memoryviews.
 #[derive(Clone)]
-#[pyclass(subclass, str, skip_from_py_object)]
+#[pyclass(subclass, str)]
 pub struct HeaderMap(pub header::HeaderMap);
 
 /// An HTTP original header map whose iterator exposes read-only memoryviews.
 #[derive(Clone)]
-#[pyclass(subclass, str, skip_from_py_object)]
+#[pyclass(subclass, str)]
 pub struct OrigHeaderMap(pub header::OrigHeaderMap);
 
 // ===== impl HeaderMap =====
diff --git a/src/http.rs b/src/http.rs
index af1d09db..572aa113 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -28,7 +28,7 @@ define_enum!(
 
 /// HTTP status code.
 #[derive(Clone, Copy)]
-#[pyclass(subclass, frozen, str, skip_from_py_object)]
+#[pyclass(subclass, frozen, str)]
 pub struct StatusCode(pub wreq::StatusCode);
 
 impl<'a, 'py> FromPyObject<'a, 'py> for StatusCode {
diff --git a/src/runtime.rs b/src/runtime.rs
index 96d95994..a23a44d9 100644
--- a/src/runtime.rs
+++ b/src/runtime.rs
@@ -49,7 +49,7 @@ pub enum Scheduler {
 
 /// Shared Tokio runtime, released after its clients and active work are dropped.
 #[derive(Clone)]
-#[pyclass(frozen, skip_from_py_object)]
+#[pyclass(frozen)]
 pub struct Runtime {
     /// Shared owner; `None` only once `Drop` has taken it to shut the runtime down.
     inner: Option<Arc<Inner>>,