diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7fc2e43..cf9cc14 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
           - rust: nightly
             allow-fail: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -49,7 +49,7 @@ jobs:
           - rust: nightly
             allow-fail: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -78,7 +78,7 @@ jobs:
           - rust: nightly-x86_64-pc-windows-gnu
             allow-fail: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -104,7 +104,7 @@ jobs:
           - rust: nightly-x86_64-pc-windows-msvc
             allow-fail: true
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         id: setup-julia
@@ -130,7 +130,7 @@ jobs:
         rust: [stable]
         allow-fail: [false]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -157,7 +157,7 @@ jobs:
   #       rust: [stable]
   #       allow-fail: [false]
   #   steps:
-  #     - uses: actions/checkout@v3
+  #     - uses: actions/checkout@v4
 
   #     - name: Setup Julia environment
   #       uses: julia-actions/setup-julia@v1
@@ -183,7 +183,7 @@ jobs:
         rust: [stable-x86_64-pc-windows-gnu]
         allow-fail: [false]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -213,7 +213,7 @@ jobs:
         rust: [stable-x86_64-pc-windows-msvc]
         allow-fail: [false]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         id: setup-julia
@@ -242,7 +242,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: test-linux
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -272,7 +272,7 @@ jobs:
     runs-on: windows-latest
     needs: test-windows-gnu
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -295,7 +295,7 @@ jobs:
     runs-on: macos-latest
     needs: test-macos
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Julia environment
         uses: julia-actions/setup-julia@v1
@@ -320,7 +320,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: test-linux
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@master