diff --git a/cabal.project b/cabal.project
index b24c12314c..6b5f8c0d22 100644
--- a/cabal.project
+++ b/cabal.project
@@ -47,3 +47,12 @@ if(os(windows))
 
 -- https://github.com/ulidtko/cabal-doctest/issues/85
 constraints: Cabal < 3.13
+
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/cardano-ledger.git
+  tag: 08cec63dd2a2fdb8c1d0d14feb0208585e23b33a
+  --sha256: sha256-4tX3D9jbdxMQ79PXNxPYPq8PcsV9fo5LDA0CTFu3zVU=
+  subdir:
+    eras/shelley-ma/test-suite
+    eras/alonzo/test-suite