diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c972b67..cdfe41b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
   AoC-2015:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
@@ -38,7 +38,7 @@ jobs:
   AoC-2016:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
@@ -59,7 +59,7 @@ jobs:
   AoC-2017:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Node.js
         uses: actions/setup-node@v6
         with:
@@ -82,7 +82,7 @@ jobs:
   AoC-2018:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up .Net Core
         uses: actions/setup-dotnet@v5
         with:
@@ -104,7 +104,7 @@ jobs:
   AoC-2019:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
@@ -124,7 +124,7 @@ jobs:
   AoC-2020:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up packages
         run: |
           sudo apt update
@@ -144,7 +144,7 @@ jobs:
   AoC-2021:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
@@ -164,7 +164,7 @@ jobs:
   AoC-2022:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up JDK 25
         uses: actions/setup-java@v5
         with:
@@ -184,7 +184,7 @@ jobs:
   AoC-2023:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up packages
         run: |
           sudo apt update
@@ -205,7 +205,7 @@ jobs:
   AoC-2024:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up .Net Core
         uses: actions/setup-dotnet@v5
         with:
@@ -228,7 +228,7 @@ jobs:
   AoC-2025:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Set up Lua
         uses: leafo/gh-actions-lua@v13
         with: