diff --git a/.github/actions/fetch-vectors/action.yml b/.github/actions/fetch-vectors/action.yml
index 4535120cf3c8..79c7a27cce07 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 14, 2024.
-        ref: "b8282def2c03640ecdd62759c5466bb1d27b9641" # x509-limbo-ref
+        # Latest commit on the x509-limbo main branch, as of May 15, 2024.
+        ref: "fed2bc2b3901c737cb125f62d571a613d502916c" # x509-limbo-ref