diff --git a/Cargo.lock b/Cargo.lock
index 37d72999..7f24bb2f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2318,36 +2318,32 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.25.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8970a78afe0628a3e3430376fc5fd76b6b45c4d43360ffd6cdd40bdde72b682a"
+checksum = "cd274650b21d4bfc26a0a47587962c1edb425f69287324355cd040c3ea66071c"
 dependencies = [
- "indoc",
  "libc",
- "memoffset",
  "once_cell",
  "portable-atomic",
  "pyo3-build-config",
  "pyo3-ffi",
  "pyo3-macros",
- "unindent",
 ]
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.25.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "458eb0c55e7ece017adeba38f2248ff3ac615e53660d7c71a238d7d2a01c7598"
+checksum = "c5e2a7d2f0d013342f295c048ad19237add5154a55b1c5a254c0ec93d4109078"
 dependencies = [
- "once_cell",
  "target-lexicon",
 ]
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.25.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7114fe5457c61b276ab77c5055f206295b812608083644a5c5b2640c3102565c"
+checksum = "ca85c467da1bbc8d866eea5deff9cf29ea5f7785054a17da36e65bda9c05845b"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -2355,9 +2351,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.25.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8725c0a622b374d6cb051d11a0983786448f7785336139c3c94f5aa6bef7e50"
+checksum = "9ac53762fd065daa3194dd09337a38bd793a188100fd1a9304c4ab312d901771"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -2367,13 +2363,12 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.25.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4109984c22491085343c05b0dbc54ddc405c3cf7b4374fc533f5c3313a572ccc"
+checksum = "4ca3a1557399783172dc5bf39cfca835157732532cba56b71d2292161e53b362"
 dependencies = [
  "heck",
  "proc-macro2",
- "pyo3-build-config",
  "quote",
  "syn 2.0.117",
 ]
@@ -3807,12 +3802,6 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
-[[package]]
-name = "unindent"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7264e107f553ccae879d21fbea1d6724ac785e8c3bfc762137959b5802826ef3"
-
 [[package]]
 name = "unsafe-libyaml"
 version = "0.2.11"
diff --git a/crates/mu-bridge/Cargo.toml b/crates/mu-bridge/Cargo.toml
index 51a33b78..12c50a3e 100644
--- a/crates/mu-bridge/Cargo.toml
+++ b/crates/mu-bridge/Cargo.toml
@@ -13,6 +13,6 @@ name = "mu_bridge"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-pyo3 = { version = "0.25", features = ["extension-module"] }
+pyo3 = { version = "0.29", features = ["extension-module"] }
 serde.workspace = true
 serde_json.workspace = true
diff --git a/crates/mu-bridge/src/lib.rs b/crates/mu-bridge/src/lib.rs
index 80c5493c..d2507675 100644
--- a/crates/mu-bridge/src/lib.rs
+++ b/crates/mu-bridge/src/lib.rs
@@ -50,7 +50,10 @@ fn py_convert_session(lines: Vec<String>, session_id: &str) -> PyResult<Vec<PyMu
 
 // ─── Python-visible event wrapper ────────────────────────────────────
 
-#[pyclass]
+// skip_from_py_object: pyo3 0.29 makes the Clone-derived FromPyObject
+// opt-in; PyMuEvent is output-only (returned to Python, never extracted
+// from Python arguments), so the extraction impl was never used.
+#[pyclass(skip_from_py_object)]
 #[derive(Clone)]
 struct PyMuEvent(MuEvent);
 
diff --git a/crates/mu-events-py/Cargo.toml b/crates/mu-events-py/Cargo.toml
index 1d09b887..829531f8 100644
--- a/crates/mu-events-py/Cargo.toml
+++ b/crates/mu-events-py/Cargo.toml
@@ -10,7 +10,7 @@ crate-type = ["cdylib", "rlib"]
 
 [dependencies]
 mu-core = { path = "../mu-core" }
-pyo3 = { version = "0.25", features = ["extension-module"] }
+pyo3 = { version = "0.29", features = ["extension-module"] }
 serde_json = "1"
 
 [features]
diff --git a/crates/providers/mu-anthropic-py/Cargo.toml b/crates/providers/mu-anthropic-py/Cargo.toml
index e83fe49f..258b7f3d 100644
--- a/crates/providers/mu-anthropic-py/Cargo.toml
+++ b/crates/providers/mu-anthropic-py/Cargo.toml
@@ -10,7 +10,7 @@ crate-type = ["cdylib", "rlib"]
 
 [dependencies]
 mu-anthropic = { path = "../mu-anthropic" }
-pyo3 = { version = "0.25", features = ["extension-module"] }
+pyo3 = { version = "0.29", features = ["extension-module"] }
 serde_json = "1"
 
 [features]