diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index a0eed52f16..95f3e13a24 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -120,7 +120,7 @@ jobs:
     - name: setup dotnet
       uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
       with:
-        dotnet-version: 6.x
+        global-json-file: dotnet/global.json
       if: ${{ matrix.target.language == 'csharp' }}
 
     - name: build dotnet
diff --git a/dotnet/global.json b/dotnet/global.json
new file mode 100644
index 0000000000..ede2ba0b36
--- /dev/null
+++ b/dotnet/global.json
@@ -0,0 +1,6 @@
+{
+  "sdk": {
+    "allowPrerelease": false,
+    "version": "8.0.425"
+  }
+}