diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 9a15125..87c2e73 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -10,7 +10,7 @@ on:
 jobs:
     soundness:
         name: Soundness
-        uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
+        uses: swiftlang/github-workflows/.github/workflows/soundness.yml@0.0.7
         with:
             license_header_check_project_name: "SwiftNIO"
     unit-tests: