diff --git a/.github/actions/fetch-vectors/action.yml b/.github/actions/fetch-vectors/action.yml
index 768d226f9f82..a1121547847f 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 Jan 28, 2025.
-        ref: "983d753a1f90dd9bcea3e8262872a51c6ab33c9e" # x509-limbo-ref
+        # Latest commit on the x509-limbo main branch, as of Jan 29, 2025.
+        ref: "ec604cf2b1eebe22c6ffc40e380517c6d49c78cc" # x509-limbo-ref