diff --git a/flake.lock b/flake.lock
index 515f3911..765a6809 100644
--- a/flake.lock
+++ b/flake.lock
@@ -77,16 +77,17 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1726116637,
-        "narHash": "sha256-tU2GhwU887mPg6C4c2k+CEBAnKY6R0tSeQYtoqjZmLM=",
+        "lastModified": 1727159616,
+        "narHash": "sha256-1VjZ+khJwZphRJZy2HvbMSCgi3OV7mu8RjVzqCxVi2k=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "96a04a213838c5001619ad57400c5a176fa040b1",
+        "rev": "4306d494985e00719573bbdeb863c27c6d83dc9c",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
         "repo": "fenix",
+        "rev": "4306d494985e00719573bbdeb863c27c6d83dc9c",
         "type": "github"
       }
     },
@@ -456,16 +457,17 @@
         ]
       },
       "locked": {
-        "lastModified": 1726107922,
-        "narHash": "sha256-G8P6YT/U55G4YILkL/I0NaEqYYoL05Rfs7y/tI4mqqI=",
+        "lastModified": 1727144949,
+        "narHash": "sha256-uMZMjoCS2nf40TAE1686SJl3OXWfdfM+BDEfRdr+uLc=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "fb1cf4398436a12f1f8b07da08d94fc72fcb1a69",
+        "rev": "2e19799819104b46019d339e78d21c14372d3666",
         "type": "github"
       },
       "original": {
         "owner": "oxalica",
         "repo": "rust-overlay",
+        "rev": "2e19799819104b46019d339e78d21c14372d3666",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 680ee688..11a881e5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,13 +12,13 @@
     "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
   ];
 
-  description = "Simple, yet extensible nix flake bootstrapping library for real-world projects";
+  description = "Simple and extensible nix flake bootstrapping library for real-world projects";
 
   inputs.advisory-db.flake = false;
   inputs.advisory-db.url = "github:rustsec/advisory-db";
   inputs.crane.url = "github:ipetkov/crane/v0.17.3";
   inputs.fenix.inputs.nixpkgs.follows = "nixpkgs-nixos";
-  inputs.fenix.url = "github:nix-community/fenix";
+  inputs.fenix.url = "github:nix-community/fenix/4306d494985e00719573bbdeb863c27c6d83dc9c";
   inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.macos-sdk.url = "https://github.com/roblabla/MacOSX-SDKs/releases/download/macosx14.0/MacOSX14.0.sdk.tar.xz";
   inputs.macos-sdk.flake = false;
@@ -28,7 +28,7 @@
   inputs.nixpkgs-darwin.url = "github:nixos/nixpkgs/nixpkgs-24.05-darwin";
   inputs.nixpkgs-nixos.url = "github:nixos/nixpkgs/nixos-24.05";
   inputs.rust-overlay.inputs.nixpkgs.follows = "nixpkgs-nixos";
-  inputs.rust-overlay.url = "github:oxalica/rust-overlay";
+  inputs.rust-overlay.url = "github:oxalica/rust-overlay/2e19799819104b46019d339e78d21c14372d3666";
 
   outputs = inputs: let
     lib = import ./lib inputs;