diff --git a/_data/projects/rust.yml b/_data/projects/rust.yml
index c8a20569f7..666c7036f5 100644
--- a/_data/projects/rust.yml
+++ b/_data/projects/rust.yml
@@ -25,3 +25,7 @@ releases:
     url: "https://github.com/seL4/rust-sel4/releases/tag/v3.0.0"
     kernel_version: 14.0.0
     microkit_version: 2.1.0
+  - version: 4.0.0
+    url: "https://github.com/seL4/rust-sel4/releases/tag/v4.0.0"
+    kernel_version: 15.0.0
+    microkit_version: 2.2.0