diff --git a/data/ecosystems/c/cardano.toml b/data/ecosystems/c/cardano.toml
index f320cd25..54de46e6 100644
--- a/data/ecosystems/c/cardano.toml
+++ b/data/ecosystems/c/cardano.toml
@@ -238,6 +238,9 @@ url = "https://github.com/input-output-hk/ethereum-explorer"
 [[repo]]
 url = "https://github.com/input-output-hk/evm-semantics-docker"
 
+[[repo]]
+url = "https://github.com/input-output-hk/fenrir"
+
 [[repo]]
 url = "https://github.com/input-output-hk/fm-ouroboros"
 
@@ -322,6 +325,9 @@ url = "https://github.com/input-output-hk/jormungandr-qa"
 [[repo]]
 url = "https://github.com/input-output-hk/jormungandr-testnets"
 
+[[repo]]
+url = "https://github.com/input-output-hk/jorup"
+
 [[repo]]
 url = "https://github.com/input-output-hk/js-cardano-wasm"