diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1bd4d3c..11660df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -72,11 +72,14 @@ jobs:
         - output: "ghc96-static"
         - output: "ghc98-static"
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v30
       with:
-        nix_path: nixpkgs=channel:release-23.05
+        nix_path: nixpkgs=channel:release-24.05
+        extra_nix_config: |
+          trusted-public-keys = iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
+          substituters = https://iohk.cachix.org https://cache.nixos.org/
 
     - run: |
         nix build .#${{ matrix.output }}