diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index a832127..94f4cc1 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -17,11 +17,13 @@ jobs:
           fetch-depth: 0
       - uses: cachix/install-nix-action@v16
 
-      - uses: cachix/cachix-action@v8
+      - uses: cachix/cachix-action@v10
         if: ${{ github.event_name == 'push' }}
         with:
           name: dcompass
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+          # Don't push source or .iso files as they are pointless to take up precious cache space.
+          pushFilter: '(-source$|nixpkgs\.tar\.gz$)'
 
       # Run the general flake checks
       - run: nix flake check -vL
diff --git a/commit.nix b/commit.nix
index 306b6d8..fceb269 100644
--- a/commit.nix
+++ b/commit.nix
@@ -28,6 +28,7 @@ pkgs.mkShell {
     find . -path ./target -prune -false -o -type f -name '*.sh' -exec shellcheck {} +
     find . -path ./target -prune -false -o -type f -name '*.sh' -exec shfmt -w {} +
     find . -path ./target -prune -false -o -type f -name '*.nix' -exec nixfmt {} +
+    nix flake update
     cargo update
     cargo fmt -- --check
     cargo build
diff --git a/flake.lock b/flake.lock
index 4641958..b417de7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -17,11 +17,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1663357389,
-        "narHash": "sha256-oYA2nVRSi6yhCBqS5Vz465Hw+3BQOVFEhfbfy//3vTs=",
+        "lastModified": 1664106353,
+        "narHash": "sha256-HMJP80+DSxFySpWyuxz5+iNozS3+dVt0b4n6YMIU5/8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "da6a05816e7fa5226c3f61e285ef8d9dfc868f3c",
+        "rev": "79d3ca08920364759c63fd3eb562e99c0c17044a",
         "type": "github"
       },
       "original": {
@@ -60,11 +60,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1663470205,
-        "narHash": "sha256-04OnrzLLWWE73GBpIgNR2NfjPH3MiHpwN1ueMQObsAc=",
+        "lastModified": 1664247556,
+        "narHash": "sha256-J4vazHU3609ekn7dr+3wfqPo5WGlZVAgV7jfux352L0=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "2ac8be332f507e521c235caa37cb0b2fc698cbd9",
+        "rev": "524db9c9ea7bc7743bb74cdd45b6d46ea3fcc2ab",
         "type": "github"
       },
       "original": {