diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 72346a8..1ffc30f 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -43,6 +43,11 @@ jobs:
       with:
         submodules: recursive
 
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 9.0.x
+
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v3