diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index cb86dde2..100f3026 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
     name: Check Format
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: ./travis.sh
         env:
           CHECK_CLANG_FORMAT: 1
@@ -76,7 +76,7 @@ jobs:
           - llvm: '18'
             lua: 'moonjit'
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: ./travis.sh
         shell: bash
         env:
@@ -87,7 +87,7 @@ jobs:
           SLIB_INCLUDE_LLVM: 1
           SLIB_INCLUDE_LUAJIT: 1
           TERRA_LUA: ${{ matrix.lua }}
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: terra-${{ matrix.os }}-x86_64-llvm-${{ matrix.llvm }}
           path: |
@@ -192,7 +192,7 @@ jobs:
           #   static: '0'
           #   test: '1'
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: ./travis.sh
         env:
           DOCKER_DISTRO: ${{ matrix.distro }}
@@ -220,7 +220,7 @@ jobs:
           - arch: 'ppc64le'
             llvm: '11.1.0'
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: ./travis.sh
         env:
           DOCKER_DISTRO: ${{ matrix.distro }}
@@ -229,7 +229,7 @@ jobs:
           DOCKER_CUDA: ${{ matrix.cuda }}
           DOCKER_VARIANT: ${{ matrix.variant }}
           DOCKER_TEST: ${{ matrix.test }}
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: docker-${{ matrix.distro }}-${{ matrix.arch }}-llvm-${{ matrix.llvm }}
           path: |
@@ -239,9 +239,9 @@ jobs:
     name: Compatibility Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - run: ./docker/compatibility_test.sh ubuntu 18.04 "18.04 20.04 22.04 24.04" "" 18.1.7 luajit prebuilt 2
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: docker-ubuntu-18.04-x86_64-llvm-18
           path: |
@@ -255,7 +255,7 @@ jobs:
         nixpkgs: ['unstable', '24.05']
         cuda: ['false', 'true']
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v13
         with:
           nix_path: nixpkgs=channel:nixos-${{ matrix.nixpkgs }}