diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index ea3b129..8af4d0d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,6 +36,8 @@ jobs:
           # a pull request then we can check out the head.
           fetch-depth: 2
 
+      # GH Actions runner uses go1.20 by default, so we need to install our own version.
+      # https://github.com/github/codeql-action/issues/1842#issuecomment-1704398087
       - name: Install Go from go.mod
         uses: actions/setup-go@v5
         with: