diff --git a/.github/actions/generate-swift-dependencies/convert-dependency-graph.swift b/.github/actions/generate-swift-dependencies/convert-dependency-graph.swift
index a969b81..80f0025 100755
--- a/.github/actions/generate-swift-dependencies/convert-dependency-graph.swift
+++ b/.github/actions/generate-swift-dependencies/convert-dependency-graph.swift
@@ -1,4 +1,4 @@
-#!/usr/bin/env swift -enable-upcoming-feature ExistentialAny -enable-upcoming-feature BareSlashRegexLiterals
+#!/usr/bin/env -S swift -enable-upcoming-feature ExistentialAny -enable-upcoming-feature BareSlashRegexLiterals
 
 import Foundation
 
diff --git a/.github/workflows/run-unit-tests.yml b/.github/workflows/run-unit-tests.yml
index 6dfb63a..5ff11fe 100644
--- a/.github/workflows/run-unit-tests.yml
+++ b/.github/workflows/run-unit-tests.yml
@@ -51,7 +51,7 @@ env:
 # We use the unversioned "jammy" docker tag to specify the "latest" Swift release in several jobs.
 jobs:  
   api-breakage:
-    if: ${{ inputs.with_public_api_check && !(github.event.pull_request.draft || false) }}
+    if: ${{ inputs.with_public_api_check && !(github.event.pull_request.draft || false) && github.event_name == 'pull_request' }}
     runs-on: ubuntu-latest
     container: swift:jammy
     timeout-minutes: 60