diff --git a/.github/actions/fetch-vectors/action.yml b/.github/actions/fetch-vectors/action.yml
index 671b966a3833..ef19150b79e7 100644
--- a/.github/actions/fetch-vectors/action.yml
+++ b/.github/actions/fetch-vectors/action.yml
@@ -16,5 +16,5 @@ runs:
       with:
         repository: "C2SP/x509-limbo"
         path: "x509-limbo"
-        # Latest commit on the x509-limbo main branch, as of May 23, 2024.
-        ref: "d879dc2a91836aebe9f558f4cc5bf183e3d19552" # x509-limbo-ref
+        # Latest commit on the x509-limbo main branch, as of Jun 06, 2024.
+        ref: "b29820ae7ebe3280d2efcaae7d77222dc8101967" # x509-limbo-ref