diff --git a/.github/workflows/build-test.yaml b/.github/workflows/build-test.yaml
index a84553a..2338440 100644
--- a/.github/workflows/build-test.yaml
+++ b/.github/workflows/build-test.yaml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.operating-system }}-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup .NET Core SDK ${{ matrix.dotnet-version }}
         uses: actions/setup-dotnet@v3
         with:
@@ -40,7 +40,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Setup .NET Core SDK
@@ -68,7 +68,7 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Setup .NET Core SDK
diff --git a/.github/workflows/codeql.yaml b/.github/workflows/codeql.yaml
index d519025..06a994d 100644
--- a/.github/workflows/codeql.yaml
+++ b/.github/workflows/codeql.yaml
@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3.5.2
+        uses: actions/checkout@v4
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
diff --git a/.github/workflows/mirror-push.yaml b/.github/workflows/mirror-push.yaml
index a3a0ee7..3b914ee 100644
--- a/.github/workflows/mirror-push.yaml
+++ b/.github/workflows/mirror-push.yaml
@@ -8,7 +8,7 @@ jobs:
   push:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: mirror