diff --git a/.github/workflows/get_values.yaml b/.github/workflows/get_values.yaml
index 500bc21..36a6552 100644
--- a/.github/workflows/get_values.yaml
+++ b/.github/workflows/get_values.yaml
@@ -44,7 +44,8 @@ jobs:
           if [ "${{ inputs.commitSha }}" != "" ]; then
               COMMIT_SHA=${{ inputs.commitSha }}
               BRANCH_NAME=${GITHUB_REF_NAME}
-          elif [ "${{ github.event_name }}" = "pull_request" ]; then
+          # pull_request_target exposes the same head ref/sha as pull_request; without this it falls through to the base branch.
+          elif [ "${{ github.event_name }}" = "pull_request" ] || [ "${{ github.event_name }}" = "pull_request_target" ]; then
               COMMIT_SHA=${{ github.event.pull_request.head.sha }}
               BRANCH_NAME=${GITHUB_HEAD_REF}
           else