diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5743dc9..38ad59a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
       uses: gittools/actions/gitversion/execute@v3.2.1
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: 9.0.x
 
diff --git a/.github/workflows/tag.yml b/.github/workflows/tag.yml
index 91659f6..d268e4f 100644
--- a/.github/workflows/tag.yml
+++ b/.github/workflows/tag.yml
@@ -14,7 +14,7 @@ jobs:
       uses: actions/checkout@v5
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: '9.0.x'
 
@@ -38,7 +38,7 @@ jobs:
         fetch-depth: 0 # avoid shallow clone so nbgv can do its work.
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: '9.0.x'