diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b989dfa..bfb1438 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,8 +4,8 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.6.0
-    - uses: cachix/install-nix-action@v18
+    - uses: actions/checkout@v4
+    - uses: cachix/install-nix-action@v27
       with:
-        nix_path: nixpkgs=channel:nixos-22.11
+        nix_path: nixpkgs=channel:nixos-24.05
     - run: nix --experimental-features "nix-command flakes" build
diff --git a/.github/workflows/bump.yml b/.github/workflows/bump.yml
index 7dbf51b..b1ed2f5 100644
--- a/.github/workflows/bump.yml
+++ b/.github/workflows/bump.yml
@@ -10,17 +10,17 @@ jobs:
   bump-o-matic:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.6.0
-    - uses: cachix/install-nix-action@v18
+    - uses: actions/checkout@v4
+    - uses: cachix/install-nix-action@v27
       with:
-        nix_path: nixpkgs=channel:nixos-23.11
+        nix_path: nixpkgs=channel:nixos-24.05
     - name: Update dependencies
       run: |
         nix --experimental-features "nix-command flakes" flake update
         nix --experimental-features "nix-command flakes" develop --command cargo update
     - name: Create pull request
       id: pr
-      uses: peter-evans/create-pull-request@v3.10.0
+      uses: peter-evans/create-pull-request@v6
       with:
         commit-message: "bump-o-matic: update dependencies"
         branch: bump-o-matic