diff --git a/vcpkg-configuration.json b/vcpkg-configuration.json
index 27c1b0bcb1..1fe14cdd44 100644
--- a/vcpkg-configuration.json
+++ b/vcpkg-configuration.json
@@ -7,7 +7,7 @@
     {
       "kind": "git",
       "repository": "https://github.com/pybamm-team/sundials-vcpkg-registry.git",
-      "baseline": "2aaffb6bba7bc0b50cb74ddad636832d673851a1",
+      "baseline": "5a6a8c4daf1e898809a19e60ea6e6cece85fe08e",
       "packages": ["sundials"]
     },
     {