diff --git a/rust/Dockerfile b/rust/Dockerfile
index 2d3660eac..4e8dc3cbc 100644
--- a/rust/Dockerfile
+++ b/rust/Dockerfile
@@ -1,5 +1,5 @@
 # Keep synced with `rust-toolchain.toml`
-ARG RUST_VERSION="1.83.0"
+ARG RUST_VERSION="1.84.0"
 ARG ALPINE_VERSION="3.20"
 ARG CARGO_CHEF_VERSION="0.1.67"
 
diff --git a/rust/gui-client/src-common/src/controller.rs b/rust/gui-client/src-common/src/controller.rs
index 078d903a4..28223fb6d 100644
--- a/rust/gui-client/src-common/src/controller.rs
+++ b/rust/gui-client/src-common/src/controller.rs
@@ -179,7 +179,7 @@ enum EventloopTick {
     UpdateNotification(Option<Option<updates::Notification>>),
 }
 
-impl<'a, I: GuiIntegration> Controller<'a, I> {
+impl<I: GuiIntegration> Controller<'_, I> {
     pub async fn start(
         ctlr_tx: CtlrTx,
         integration: I,
diff --git a/rust/rust-toolchain.toml b/rust/rust-toolchain.toml
index 672aacb04..582a612be 100644
--- a/rust/rust-toolchain.toml
+++ b/rust/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
 # Keep synced with `Dockerfile`
-channel = "1.83.0"
+channel = "1.84.0"
diff --git a/scripts/nix/flake.lock b/scripts/nix/flake.lock
index fee51bb1e..3e0fbbe99 100644
--- a/scripts/nix/flake.lock
+++ b/scripts/nix/flake.lock
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1732749044,
-        "narHash": "sha256-T38FQOg0BV5M8FN1712fovzNakSOENEYs+CSkg31C9Y=",
+        "lastModified": 1735563628,
+        "narHash": "sha256-OnSAY7XDSx7CtDoqNh8jwVwh4xNL/2HaJxGjryLWzX8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0c5b4ecbed5b155b705336aa96d878e55acd8685",
+        "rev": "b134951a4c9f3c995fd7be05f3243f8ecd65d798",
         "type": "github"
       },
       "original": {
@@ -61,11 +61,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1732802692,
-        "narHash": "sha256-kFrxb45qj52TT/OFUFyTdmvXkn/KXDUL0/DOtjHEQvs=",
+        "lastModified": 1736476219,
+        "narHash": "sha256-+qyv3QqdZCdZ3cSO/cbpEY6tntyYjfe1bB12mdpNFaY=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "34971069ec33755b2adf2481851f66d8ec9a6bfa",
+        "rev": "de30cc5963da22e9742bbbbb9a3344570ed237b9",
         "type": "github"
       },
       "original": {
diff --git a/scripts/nix/flake.nix b/scripts/nix/flake.nix
index c416ca1cf..f0f612015 100644
--- a/scripts/nix/flake.nix
+++ b/scripts/nix/flake.nix
@@ -5,7 +5,7 @@
     rust-overlay.url = "github:oxalica/rust-overlay";
   };
 
-  outputs = { nixpkgs, flake-utils, rust-overlay, ... } @ inputs:
+  outputs = { nixpkgs, flake-utils, rust-overlay, ... }:
     flake-utils.lib.eachDefaultSystem
       (
         system: