diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d8ff670..c557e2a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
diff --git a/.github/workflows/publish-mcp.yml b/.github/workflows/publish-mcp.yml
index b0e4ee9..6c6ae7c 100644
--- a/.github/workflows/publish-mcp.yml
+++ b/.github/workflows/publish-mcp.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0 # Nerdbank.GitVersioning needs full history
           persist-credentials: false
           
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bdd5030..588f4a4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-dotnet@v5
+      - uses: actions/setup-dotnet@v6
         with:
           global-json-file: global.json