diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3ce550..cd6f31b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [unreleased]
+
+### Misc.
+
+- (deps) Rust 1.91.0 [#140](https://github.com/sectore/timr-tui/pull/140)
+
 ## v1.6.1 - 2025-10-29
 
 ### Fix
diff --git a/Cargo.toml b/Cargo.toml
index d7b25a7..1448fd7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ version = "1.6.1"
 description = "TUI to organize your time: Pomodoro, Countdown, Timer."
 edition = "2024"
 # Reminder: Always keep `channel` in `rust-toolchain.toml` in sync with `rust-version`.
-rust-version = "1.90.0"
+rust-version = "1.91.0"
 homepage = "https://github.com/sectore/timr-tui"
 repository = "https://github.com/sectore/timr-tui"
 readme = "README.md"
diff --git a/flake.lock b/flake.lock
index cd67329..67f48ef 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "crane": {
       "locked": {
-        "lastModified": 1758758545,
-        "narHash": "sha256-NU5WaEdfwF6i8faJ2Yh+jcK9vVFrofLcwlD/mP65JrI=",
+        "lastModified": 1760924934,
+        "narHash": "sha256-tuuqY5aU7cUkR71sO2TraVKK2boYrdW3gCSXUkF4i44=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "95d528a5f54eaba0d12102249ce42f4d01f4e364",
+        "rev": "c6b4d5308293d0d04fcfeee92705017537cad02f",
         "type": "github"
       },
       "original": {
@@ -23,11 +23,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1758782550,
-        "narHash": "sha256-olCvyP5r6+HQTl2EUudtjlA5UammsBpkzAl0l9+utZc=",
+        "lastModified": 1762065744,
+        "narHash": "sha256-c04mxJoCb8f6BBrdaREWmdQq+pfp395olXhC+B0G7DI=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "32f4e350c03cc5762be811e9c700e8696cd13c02",
+        "rev": "e0f24085a4a0da1c32adc308ec4c518ae886ff35",
         "type": "github"
       },
       "original": {
@@ -56,11 +56,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1758690382,
-        "narHash": "sha256-NY3kSorgqE5LMm1LqNwGne3ZLMF2/ILgLpFr1fS4X3o=",
+        "lastModified": 1761907660,
+        "narHash": "sha256-kJ8lIZsiPOmbkJypG+B5sReDXSD1KGu2VEPNqhRa/ew=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e643668fd71b949c53f8626614b21ff71a07379d",
+        "rev": "2fb006b87f04c4d3bdf08cfdbc7fab9c13d94a15",
         "type": "github"
       },
       "original": {
@@ -81,11 +81,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1758620797,
-        "narHash": "sha256-Ly4rHgrixFMBnkbMursVt74mxnntnE6yVdF5QellJ+A=",
+        "lastModified": 1762016333,
+        "narHash": "sha256-PT8hXDYyeRjh9BGyLF/nZWm9TqRwP2EzeKuqUFH0M3w=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "905641f3520230ad6ef421bcf5da9c6b49f2479b",
+        "rev": "fca718c0f2074bdccf9a996bb37b0fcaff80dc97",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 6e0690a..6e78c1b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,7 +24,7 @@
         {
           file = ./rust-toolchain.toml;
           # sha256 = nixpkgs.lib.fakeSha256;
-          sha256 = "sha256-SJwZ8g0zF2WrKDVmHrVG3pD2RGoQeo24MEXnNx5FyuI=";
+          sha256 = "sha256-2eWc3xVTKqg5wKSHGwt1XoM/kUBC6y3MWfKg74Zn+fY=";
         };
 
       craneLib = (crane.mkLib pkgs).overrideToolchain toolchain;
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index b24dca8..3a51883 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,6 +1,6 @@
 [toolchain]
 # Reminder: Always keep `rust-version` in `Cargo.toml` in sync with `channel`.
-channel = "1.90.0"
+channel = "1.91.0"
 components = ["clippy", "rustfmt", "rust-src", "rust-analyzer"]
 targets = ["x86_64-pc-windows-gnu", "x86_64-unknown-linux-musl"]
 profile = "minimal"