diff --git a/Cargo.lock b/Cargo.lock
index 244408d..93790b6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,12 +1,12 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "anyhow"
-version = "1.0.86"
+version = "1.0.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3d1d046238990b9cf5bcde22a3fb3584ee5cf65fb2765f454ed428c7a0063da"
+checksum = "34ac096ce696dc2fcabef30516bb13c0a68a11d30131d3df6f04711467681b04"
 
 [[package]]
 name = "arguments"
@@ -17,9 +17,9 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
 [[package]]
 name = "cfg-if"
@@ -76,15 +76,21 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.11"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
+checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
 
 [[package]]
 name = "libc"
-version = "0.2.155"
+version = "0.2.169"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
+
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
 name = "memoffset"
@@ -111,9 +117,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.19.0"
+version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
 [[package]]
 name = "output"
@@ -155,15 +161,15 @@ dependencies = [
 
 [[package]]
 name = "portable-atomic"
-version = "1.7.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da544ee218f0d287a911e9c99a39a8c9bc8fcad3cb8db5959940044ecfc67265"
+checksum = "280dc24453071f1b63954171985a0b0d30058d287960968b9b2aca264c8d4ee6"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.86"
+version = "1.0.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
+checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
 dependencies = [
  "unicode-ident",
 ]
@@ -177,9 +183,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.22.2"
+version = "0.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "831e8e819a138c36e212f3af3fd9eeffed6bf1510a805af35b0edee5ffa59433"
+checksum = "e484fd2c8b4cb67ab05a318f1fd6fa8f199fcc30819f08f07d200809dba26c15"
 dependencies = [
  "cfg-if",
  "indoc",
@@ -195,9 +201,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.22.2"
+version = "0.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e8730e591b14492a8945cdff32f089250b05f5accecf74aeddf9e8272ce1fa8"
+checksum = "dc0e0469a84f208e20044b98965e1561028180219e35352a2afaf2b942beff3b"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -205,9 +211,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.22.2"
+version = "0.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e97e919d2df92eb88ca80a037969f44e5e70356559654962cbb3316d00300c6"
+checksum = "eb1547a7f9966f6f1a0f0227564a9945fe36b90da5a93b3933fc3dc03fae372d"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -215,9 +221,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.22.2"
+version = "0.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb57983022ad41f9e683a599f2fd13c3664d7063a3ac5714cae4b7bee7d3f206"
+checksum = "fdb6da8ec6fa5cedd1626c886fc8749bdcbb09424a86461eb8cdf096b7c33257"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -227,9 +233,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.22.2"
+version = "0.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec480c0c51ddec81019531705acac51bcdbeae563557c982aa8263bb96880372"
+checksum = "38a385202ff5a92791168b1136afae5059d3ac118457bb7bc304c197c2d33e7d"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -240,9 +246,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.36"
+version = "1.0.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
 dependencies = [
  "proc-macro2",
 ]
@@ -255,24 +261,24 @@ checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
 [[package]]
 name = "semver"
-version = "1.0.23"
+version = "1.0.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
+checksum = "3cb6eb87a131f756572d7fb904f6e7b68633f09cca868c5df1c4b8d1a694bbba"
 
 [[package]]
 name = "serde"
-version = "1.0.204"
+version = "1.0.217"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
+checksum = "02fc4265df13d6fa1d00ecff087228cc0a2b5f3c0e87e258d8b94a156e984c70"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.204"
+version = "1.0.217"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
+checksum = "5a9bf7cf98d04a2b28aead066b7496853d4779c9cc183c440dbac457641e19a0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -281,11 +287,12 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.120"
+version = "1.0.134"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e0d21c9a8cae1235ad58a00c11cb40d4b1e5c784f1ef2c537876ed6ffd8b7c5"
+checksum = "d00f4175c42ee48b15416f6193a959ba3a0d67fc699a0db9ad12df9f83991c7d"
 dependencies = [
  "itoa",
+ "memchr",
  "ryu",
  "serde",
 ]
@@ -313,9 +320,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.72"
+version = "2.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc4b9b9bf2add8093d3f2c0204471e951b2285580335de42f9d2534f3ae7a8af"
+checksum = "987bc0be1cdea8b10216bd06e2ca407d40b9543468fafd3ddfb02f36e77f71f3"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -324,15 +331,15 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.15"
+version = "0.12.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4873307b7c257eddcb50c9bedf158eb669578359fb28428bef438fec8e6ba7c2"
+checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.12"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
 [[package]]
 name = "unindent"
diff --git a/Cargo.toml b/Cargo.toml
index ec90cb2..ff59c34 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,10 @@
 [workspace]
 members = ["exercises/*/*", "patcher"]
 resolver = "2"
+
+[workspace.dependencies]
+anyhow = "1"
+pyo3 = "0.23.3"
+semver = "1.0.23"
+serde = "1.0.204"
+serde_json = "1.0.120"
diff --git a/book/src/01_intro/01_setup.md b/book/src/01_intro/01_setup.md
index 25a236c..651f05f 100644
--- a/book/src/01_intro/01_setup.md
+++ b/book/src/01_intro/01_setup.md
@@ -61,7 +61,7 @@ name = "setup"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.21.1"
+pyo3 = "0.23.0"
 ```
 
 Two things stand out in this file compared to a regular Rust project:
diff --git a/book/src/01_intro/04_arguments.md b/book/src/01_intro/04_arguments.md
index 095a4c1..12fae67 100644
--- a/book/src/01_intro/04_arguments.md
+++ b/book/src/01_intro/04_arguments.md
@@ -53,4 +53,4 @@ Don't try to use them to solve the exercise for this section: we'll cover them i
 
 ## References
 
-- [The `FromPyObject` trait](https://docs.rs/pyo3/0.22.0/pyo3/conversion/trait.FromPyObject.html)
+- [The `FromPyObject` trait](https://docs.rs/pyo3/0.23.3/pyo3/conversion/trait.FromPyObject.html)
diff --git a/book/src/01_intro/05_gil.md b/book/src/01_intro/05_gil.md
index 1dff49e..d9d2741 100644
--- a/book/src/01_intro/05_gil.md
+++ b/book/src/01_intro/05_gil.md
@@ -134,8 +134,8 @@ when we're interacting with the Python object during the conversion.
 
 ## References
 
-- [`FromPyObject`](https://docs.rs/pyo3/0.22.1/pyo3/conversion/trait.FromPyObject.html)
-- [`Python<'py>`](https://docs.rs/pyo3/0.22.1/pyo3/marker/struct.Python.html)
+- [`FromPyObject`](https://docs.rs/pyo3/0.23.3/pyo3/conversion/trait.FromPyObject.html)
+- [`Python<'py>`](https://docs.rs/pyo3/0.23.3/pyo3/marker/struct.Python.html)
 - [Global Interpreter Lock](https://docs.python.org/3/c-api/init.html#thread-state-and-the-global-interpreter-lock)
 - [Official guidance on Python-native vs Rust-native types](https://pyo3.rs/v0.22.0/conversions/tables#using-rust-library-types-vs-python-native-types)
 
diff --git a/book/src/01_intro/06_output.md b/book/src/01_intro/06_output.md
index 255ef9d..2b2bf6c 100644
--- a/book/src/01_intro/06_output.md
+++ b/book/src/01_intro/06_output.md
@@ -3,25 +3,32 @@
 We've gone deep into the weeds of how `pyo3` handles arguments to your `#[pyfunction]`s.
 Let's now move our focus to output values: how do you return _something_ from your Rust functions to Python?
 
-## `IntoPy`
+## `IntoPyObject`
 
 Guess what? There's a trait for that too!\
-`IntoPy` is the counterpart of `FromPyObject`. It converts Rust values into Python objects:
+`IntoPyObject` is the counterpart of `FromPyObject`. It converts Rust values into Python objects:
 
 ```rust
-pub trait IntoPy<T>: Sized {
-    fn into_py(self, py: Python<'_>) -> T;
+pub trait IntoPyObject<'py>: Sized {
+    type Target;
+    type Output: BoundObject<'py, Self::Target>;
+    type Error: Into<PyErr>;
+
+    fn into_pyobject(self, py: Python<'py>) -> Result<Self::Output, Self::Error>;
 }
 ```
 
-The output type of your `#[pyfunction]` must implement `IntoPy`.
+The output type of your `#[pyfunction]` must implement `IntoPyObject`.
 
-### `IntoPy::into_py`
+### `IntoPyObject::into_pyobject`
 
-`IntoPy::into_py` expects two arguments:
+`IntoPyObject::into_pyobject` expects two arguments:
 
 - `self`: the Rust value you want to convert into a Python object.
-- `Python<'_>`: a GIL token that you can use to create new Python objects.
+- `Python<'py>`: a GIL token that you can use to create new Python objects.
+
+The conversion can fail, so the method returns a `Result`.\
+The output type itself is more complex, so let's break it down using an example.
 
 ## Case study: a newtype
 
@@ -29,20 +36,65 @@ Let's look at a simple example: a newtype that wraps a `u64`.
 We want it to be represented as a "plain" integer in Python.
 
 ```rust
+use std::convert::Infallible;
 use pyo3::prelude::*;
+use pyo3::types::PyInt;
 
 struct MyType {
     value: u64,
 }
 
-impl IntoPy<Py<PyAny>> for MyType {
-    fn into_py(self, py: Python<'_>) -> Py<PyAny> {
-        self.value.to_object(py)
+impl<'py> IntoPyObject<'py> for MyType {
+    /// `Target` is the **concrete** Python type we want to use
+    /// to represent our Rust value.
+    /// The underlying Rust type is a `u64`, so we'll convert it to a `PyInt`,
+    /// a Python integer.
+    type Target = PyInt;
+    /// `Output`, instead, is a **wrapper** around the concrete type.
+    /// It captures the ownership relationship between the Python object
+    /// and the Python runtime.
+    /// In this case, we're using a `Bound` smart pointer to a `PyInt`.
+    /// The `'py` lifetime ensures that the Python object is owned 
+    /// by the Python runtime.
+    type Output = Bound<'py, PyInt>;
+    /// Since the conversion can fail, we need to specify an error type.
+    /// We can't fail to convert a `u64` into a Python integer,
+    /// so we'll use `Infallible` as the error type.
+    type Error = Infallible;
+
+    fn into_pyobject(self, py: Python<'py>) -> Result<Self::Output, Self::Error> {
+        // `u64` already implements `IntoPyObject`, so we delegate 
+        // to its implementation to do the actual conversion.
+        self.value.into_pyobject(py)
     }
 }
 ```
 
+### The `Output` associated type
+
+Let's focus on the `Output` associated type for a moment.\
+In almost all cases, you'll be setting `Output` to `Bound<'py, Self::Target>`[^syntax]. You're creating a new Python
+object and its lifetime is tied to the Python runtime.
+
+In a few cases, you might be able to rely on [`Borrowed<'a, 'py, Self::Target>`](https://docs.rs/pyo3/0.23.3/pyo3/prelude/struct.Borrowed.html)
+instead.
+It's slightly faster[^conversation], but it's limited to scenarios where you are borrowing from an existing Python object—fairly
+rare for an `IntoPyObject` implementation.
+
+There are no other options for `Output`, since `Output` must implement
+[the `BoundObject` trait](https://docs.rs/pyo3/0.23.3/pyo3/trait.BoundObject.html),
+the trait is [sealed](https://predr.ag/blog/definitive-guide-to-sealed-traits-in-rust/) and
+those two types are the only implementors within `pyo3`.\
+If it helps, think of `Output` as an enum with two variants: `Bound` and `Borrowed`.
+
 ## Provided implementations
 
-`pyo3` provides out-of-the-box implementations of `IntoPy` for many Rust types, as well as for all `Py*` types.
-Check out [its documentation](https://docs.rs/pyo3/0.22.0/pyo3/conversion/trait.IntoPy.html#) for an exhaustive list.
+`pyo3` provides out-of-the-box implementations of `IntoPyObject` for many Rust types, as well as for all `Py*` types.
+Check out [its documentation](https://docs.rs/pyo3/0.23.3/pyo3/conversion/trait.IntoPyObject.html#foreign-impls)
+for an exhaustive list.
+
+[^syntax]: The actual syntax is a bit more complex: `type Output = Bound<'py, <Self as IntoPyObject<'py>>::Target>>;`.
+We've simplified it for clarity.
+
+[^conversation]: In addition to its documentation, you may find [this issue](https://github.com/PyO3/pyo3/issues/4467)
+useful to understand the trade-offs between `&Bound` and `Borrowed`.
diff --git a/book/src/02_classes/00_pyclass.md b/book/src/02_classes/00_pyclass.md
index ed2b21f..c766452 100644
--- a/book/src/02_classes/00_pyclass.md
+++ b/book/src/02_classes/00_pyclass.md
@@ -31,9 +31,9 @@ fn my_module(m: &Bound<'_, PyModule>) -> PyResult<()> {
 }
 ```
 
-## `IntoPy`
+## `IntoPyObject`
 
-Rust types that have been annotated with `#[pyclass]` automatically implement the `IntoPy` trait, thus
+Rust types that have been annotated with `#[pyclass]` automatically implement the `IntoPyObject` trait, thus
 allowing you to return them from your `#[pyfunction]`s.
 
 For example, you can define a function that creates a new `Wallet` instance:
diff --git a/book/src/02_classes/06_parent.md b/book/src/02_classes/06_parent.md
index ca1ed01..3fe4112 100644
--- a/book/src/02_classes/06_parent.md
+++ b/book/src/02_classes/06_parent.md
@@ -79,7 +79,7 @@ impl Child {
 ```
 
 `PyRef` represents an immutable reference to the Python object.\
-It allows us, in particular, to call the [`as_super`](https://docs.rs/pyo3/0.22.1/pyo3/pycell/struct.PyRef.html#method.as_super) method,
+It allows us, in particular, to call the [`as_super`](https://docs.rs/pyo3/0.23.3/pyo3/pycell/struct.PyRef.html#method.as_super) method,
 which returns a reference to the parent class.
 
 ```rust
diff --git a/exercises/01_intro/01_setup/Cargo.toml b/exercises/01_intro/01_setup/Cargo.toml
index fcabaea..4f8af08 100644
--- a/exercises/01_intro/01_setup/Cargo.toml
+++ b/exercises/01_intro/01_setup/Cargo.toml
@@ -8,4 +8,4 @@ name = "setup"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/02_modules/Cargo.toml b/exercises/01_intro/02_modules/Cargo.toml
index af8e307..dbf3c14 100644
--- a/exercises/01_intro/02_modules/Cargo.toml
+++ b/exercises/01_intro/02_modules/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/03_functions/Cargo.toml b/exercises/01_intro/03_functions/Cargo.toml
index c7e41b5..6618876 100644
--- a/exercises/01_intro/03_functions/Cargo.toml
+++ b/exercises/01_intro/03_functions/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/04_arguments/Cargo.toml b/exercises/01_intro/04_arguments/Cargo.toml
index 0c24e4f..7f58665 100644
--- a/exercises/01_intro/04_arguments/Cargo.toml
+++ b/exercises/01_intro/04_arguments/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/05_gil/Cargo.toml b/exercises/01_intro/05_gil/Cargo.toml
index 4fe8466..69467dc 100644
--- a/exercises/01_intro/05_gil/Cargo.toml
+++ b/exercises/01_intro/05_gil/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/06_output/Cargo.toml b/exercises/01_intro/06_output/Cargo.toml
index 5143327..67ceea4 100644
--- a/exercises/01_intro/06_output/Cargo.toml
+++ b/exercises/01_intro/06_output/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/07_exceptions/Cargo.toml b/exercises/01_intro/07_exceptions/Cargo.toml
index aa75b54..cb5545d 100644
--- a/exercises/01_intro/07_exceptions/Cargo.toml
+++ b/exercises/01_intro/07_exceptions/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/01_intro/08_outro/Cargo.toml b/exercises/01_intro/08_outro/Cargo.toml
index 8606ca1..bcd5e4f 100644
--- a/exercises/01_intro/08_outro/Cargo.toml
+++ b/exercises/01_intro/08_outro/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/00_pyclass/Cargo.toml b/exercises/02_classes/00_pyclass/Cargo.toml
index 4bded3d..76d3a02 100644
--- a/exercises/02_classes/00_pyclass/Cargo.toml
+++ b/exercises/02_classes/00_pyclass/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/01_constructors/Cargo.toml b/exercises/02_classes/01_constructors/Cargo.toml
index baef0d8..b0c8e45 100644
--- a/exercises/02_classes/01_constructors/Cargo.toml
+++ b/exercises/02_classes/01_constructors/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/02_methods/Cargo.toml b/exercises/02_classes/02_methods/Cargo.toml
index b3f3876..e0509b6 100644
--- a/exercises/02_classes/02_methods/Cargo.toml
+++ b/exercises/02_classes/02_methods/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/03_setters/Cargo.toml b/exercises/02_classes/03_setters/Cargo.toml
index ff4a67c..c653ad2 100644
--- a/exercises/02_classes/03_setters/Cargo.toml
+++ b/exercises/02_classes/03_setters/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/04_static_methods/Cargo.toml b/exercises/02_classes/04_static_methods/Cargo.toml
index 766fd9c..93cfacd 100644
--- a/exercises/02_classes/04_static_methods/Cargo.toml
+++ b/exercises/02_classes/04_static_methods/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/05_inheritance/Cargo.toml b/exercises/02_classes/05_inheritance/Cargo.toml
index 7e20527..5a77041 100644
--- a/exercises/02_classes/05_inheritance/Cargo.toml
+++ b/exercises/02_classes/05_inheritance/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/06_parent/Cargo.toml b/exercises/02_classes/06_parent/Cargo.toml
index e11e145..7c59cee 100644
--- a/exercises/02_classes/06_parent/Cargo.toml
+++ b/exercises/02_classes/06_parent/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/exercises/02_classes/07_outro/Cargo.toml b/exercises/02_classes/07_outro/Cargo.toml
index ac126eb..d47372b 100644
--- a/exercises/02_classes/07_outro/Cargo.toml
+++ b/exercises/02_classes/07_outro/Cargo.toml
@@ -7,4 +7,4 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.22"
+pyo3 = { workspace = true }
diff --git a/patcher/Cargo.toml b/patcher/Cargo.toml
index 4712ea1..ff00bf7 100644
--- a/patcher/Cargo.toml
+++ b/patcher/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-anyhow = "1"
-semver = "1.0.23"
-serde = { version = "1.0.204", features = ["derive"] }
-serde_json = "1.0.120"
+anyhow = { workspace = true }
+semver = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }