diff --git a/.github/workflows/_rust.yml b/.github/workflows/_rust.yml
index 2187d2eb6..75998c941 100644
--- a/.github/workflows/_rust.yml
+++ b/.github/workflows/_rust.yml
@@ -56,8 +56,8 @@ jobs:
         timeout-minutes: 5
       - uses: taiki-e/install-action@cargo-udeps
       - run: |
-          rustup install --no-self-update nightly-2024-03-26 --profile minimal # The exact nightly version doesn't matter, just pin a random one.
-          cargo +nightly-2024-03-26 udeps --all-targets --all-features ${{ steps.setup-rust.outputs.packages }}
+          rustup install --no-self-update nightly-2024-06-01 --profile minimal # The exact nightly version doesn't matter, just pin a random one.
+          cargo +nightly-2024-06-01 udeps --all-targets --all-features ${{ steps.setup-rust.outputs.packages }}
         name: Check for unused dependencies
       - run: cargo fmt -- --check
       - run: cargo doc --all-features --no-deps --document-private-items ${{ steps.setup-rust.outputs.packages }}
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 1c9efdba0..124cb97ef 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -2636,7 +2636,6 @@ name = "gui-smoke-test"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "libc",
  "subprocess",
  "tracing",
  "tracing-subscriber",
diff --git a/rust/gui-smoke-test/Cargo.toml b/rust/gui-smoke-test/Cargo.toml
index 7d7ec1c62..b6a81b6b5 100644
--- a/rust/gui-smoke-test/Cargo.toml
+++ b/rust/gui-smoke-test/Cargo.toml
@@ -5,7 +5,6 @@ edition = "2021"
 
 [dependencies]
 anyhow = { version = "1.0" }
-libc = "0.2.155"
 subprocess = "0.2.9"
 tracing = { workspace = true }
 tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }