diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index f51e550..7d6993e 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -43,7 +43,7 @@ jobs:
       DOTNET_NOLOGO: true
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-dotnet@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 055ab6c..dabb2c2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -37,7 +37,7 @@ jobs:
       DOTNET_NOLOGO: true
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-dotnet@v5