diff --git a/CHANGELOG.md b/CHANGELOG.md
index 698ee215..b605e23c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,9 +6,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
+- [#345] Update dev-dependency `serial_test`
 - [#344] Replace `pub(crate)` with `pub`
 - [#343] Mark `v0.3.4` as released in `CHANGELOG.md`
 
+[#345]: https://github.com/knurling-rs/probe-run/pull/345
 [#344]: https://github.com/knurling-rs/probe-run/pull/344
 [#343]: https://github.com/knurling-rs/probe-run/pull/343
 
diff --git a/Cargo.lock b/Cargo.lock
index 623ebdf9..da1b4330 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -196,6 +196,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dashmap"
+version = "5.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3495912c9c1ccf2e18976439f4443f3fee0fd61f424ff99fde6a66b15ecb448f"
+dependencies = [
+ "cfg-if",
+ "hashbrown",
+ "lock_api",
+ "parking_lot_core",
+]
+
 [[package]]
 name = "defmt-decoder"
 version = "0.3.3"
@@ -831,12 +843,6 @@ dependencies = [
  "semver",
 ]
 
-[[package]]
-name = "rustversion"
-version = "1.0.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97477e48b4cf8603ad5f7aaf897467cf42ab4218a38ef76fb14c2d6773a6d6a8"
-
 [[package]]
 name = "ryu"
 version = "1.0.11"
@@ -912,26 +918,25 @@ dependencies = [
 
 [[package]]
 name = "serial_test"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d19dbfb999a147cedbfe82f042eb9555f5b0fa4ef95ee4570b74349103d9c9f4"
+checksum = "92761393ee4dc3ff8f4af487bd58f4307c9329bbedea02cac0089ad9c411e153"
 dependencies = [
+ "dashmap",
  "lazy_static",
- "log",
  "parking_lot",
  "serial_test_derive",
 ]
 
 [[package]]
 name = "serial_test_derive"
-version = "0.7.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb9e2050b2be1d681f8f1c1a528bcfe4e00afa2d8995f713974f5333288659f2"
+checksum = "4b6f5d1c3087fb119617cff2966fe3808a80e5eb59a8c1601d5994d66f4346a5"
 dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "rustversion",
  "syn",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index e20d93ad..e92bf2e9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,4 +37,4 @@ os_pipe = "1.0"
 pretty_assertions = "1"
 rstest = { version = "0.15", default-features = false }
 nix = "0.24"
-serial_test = "0.7"
+serial_test = { version = "0.9", default-features = false }
diff --git a/src/backtrace/mod.rs b/src/backtrace/mod.rs
index 137a7fc3..5d690352 100644
--- a/src/backtrace/mod.rs
+++ b/src/backtrace/mod.rs
@@ -87,7 +87,7 @@ pub fn print(
 }
 
 /// Target program outcome
-#[derive(Clone, Copy, Debug, PartialEq)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum Outcome {
     HardFault,
     Ok,
diff --git a/src/dep/cratesio.rs b/src/dep/cratesio.rs
index 668ad99e..0c345b75 100644
--- a/src/dep/cratesio.rs
+++ b/src/dep/cratesio.rs
@@ -2,7 +2,7 @@ use std::path::{self, Component, Path as StdPath, PathBuf};
 
 use colored::Colorize as _;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Path<'p> {
     registry_prefix: PathBuf,
     crate_name_version: &'p str,
diff --git a/src/dep/mod.rs b/src/dep/mod.rs
index 27354417..563ff689 100644
--- a/src/dep/mod.rs
+++ b/src/dep/mod.rs
@@ -10,7 +10,7 @@ mod rust_repo;
 mod rust_std;
 mod rustc;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Path<'p> {
     Cratesio(cratesio::Path<'p>),
     /// Path into `rust-std` component
diff --git a/src/dep/rust_repo.rs b/src/dep/rust_repo.rs
index 1e09c27a..d6bb8611 100644
--- a/src/dep/rust_repo.rs
+++ b/src/dep/rust_repo.rs
@@ -3,7 +3,7 @@ use std::path::{self, Path as StdPath};
 use colored::Colorize as _;
 
 /// Representation of a rust-lang/rust repo path
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Path<'p> {
     One52(One52Path<'p>),
     Verbatim(&'p StdPath),
@@ -34,7 +34,7 @@ impl<'p> Path<'p> {
 }
 
 /// rust-lang/repo path format as of 1.52 e.g. "library/core/src/panic.rs"
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct One52Path<'p> {
     pub library: &'p str,
     pub crate_name: &'p str,
diff --git a/src/dep/rust_std.rs b/src/dep/rust_std.rs
index ea9c86c8..e920e1f1 100644
--- a/src/dep/rust_std.rs
+++ b/src/dep/rust_std.rs
@@ -8,7 +8,7 @@ use super::rust_repo;
 
 mod toolchain;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Path<'p> {
     rustup_prefix: PathBuf,
     toolchain: Toolchain<'p>,
diff --git a/src/dep/rust_std/toolchain.rs b/src/dep/rust_std/toolchain.rs
index 8b3d1374..2d127679 100644
--- a/src/dep/rust_std/toolchain.rs
+++ b/src/dep/rust_std/toolchain.rs
@@ -2,7 +2,7 @@ use std::borrow::Cow;
 
 use colored::Colorize;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Toolchain<'p> {
     One52(One52<'p>),
     Verbatim(&'p str),
@@ -32,7 +32,7 @@ impl<'p> Toolchain<'p> {
     }
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct One52<'p> {
     pub channel: Channel<'p>,
     pub host: &'p str,
@@ -113,7 +113,7 @@ impl<'p> One52<'p> {
     }
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub enum Channel<'p> {
     Beta,
     Nightly { date: Option<&'p str> },
diff --git a/src/dep/rustc.rs b/src/dep/rustc.rs
index 245efb2f..52d0ea5b 100644
--- a/src/dep/rustc.rs
+++ b/src/dep/rustc.rs
@@ -4,7 +4,7 @@ use colored::Colorize;
 
 use super::rust_repo;
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Eq, PartialEq)]
 pub struct Path<'p> {
     rustc_prefix: PathBuf,
     rust_repo_path: rust_repo::Path<'p>,