diff --git a/.github/workflows/fuzzing-tests.yml b/.github/workflows/fuzzing-tests.yml
index 05b4100..ccf75f9 100644
--- a/.github/workflows/fuzzing-tests.yml
+++ b/.github/workflows/fuzzing-tests.yml
@@ -13,13 +13,13 @@ jobs:
 
     steps:
       # Checkout this repository
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: '1.20'
 
       # Checkout the Fuzzing seed and generated corpus
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           repository: andygrunwald/vdf-fuzzing-corpus
           path: testdata/fuzz
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 3a27b34..5aca04b 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version:  '1.20'
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: '1.20'
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: '1.20'
@@ -62,7 +62,7 @@ jobs:
         go: [ '1.20', '1.19' ]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}
@@ -74,7 +74,7 @@ jobs:
       # Deactivated right now, because this let the unit tests
       # run into an execution timeout.
       #
-      #- uses: actions/checkout@v4
+      #- uses: actions/checkout@v6
       #  with:
       #    repository: andygrunwald/vdf-fuzzing-corpus
       #    path: testdata/fuzz