diff --git a/specs/SUMMARY.md b/specs/SUMMARY.md
index 32636e164..94dc5d5cb 100644
--- a/specs/SUMMARY.md
+++ b/specs/SUMMARY.md
@@ -12,7 +12,9 @@
       - [Span Batches](./protocol/delta/span-batches.md)
     - [Ecotone](./protocol/ecotone/overview.md)
     - [Fjord](./fjord/overview.md)
+      - [Execution Engine](./fjord/exec-engine.md)
       - [Derivation](./fjord/derivation.md)
+      - [Predeploys](./fjord/predeploys.md)
   - [Bridges](./protocol/bridges.md)
     - [Messengers](./protocol/messengers.md)
     - [Deposits](./protocol/deposits.md)