diff --git a/cabal.project b/cabal.project
index 4d153d34c86..b3ba11bb677 100644
--- a/cabal.project
+++ b/cabal.project
@@ -166,3 +166,11 @@ if impl(ghc >= 9.14)
 -- Do NOT add more source-repository-package stanzas here unless they are strictly
 -- temporary! Please read the section in CONTRIBUTING about updating dependencies.
 
+source-repository-package
+  type: git
+  location: https://github.com/IntersectMBO/cardano-api
+  tag: 8d2154b34de4951b4b8867253251f146844fad18
+  --sha256: sha256-e3qpkb9RJl44vsFwp8DssqH9lOrzXe7OPwaBDrmv7KA=
+  subdir:
+    cardano-rpc
+
diff --git a/cardano-testnet/.changes/20260820_124721_mgalazyn_reenable_rpc_readgenesis_initialfunds_assertion.yml b/cardano-testnet/.changes/20260820_124721_mgalazyn_reenable_rpc_readgenesis_initialfunds_assertion.yml
new file mode 100644
index 00000000000..aa7a3267c93
--- /dev/null
+++ b/cardano-testnet/.changes/20260820_124721_mgalazyn_reenable_rpc_readgenesis_initialfunds_assertion.yml
@@ -0,0 +1,5 @@
+pr: 6657
+kind:
+  - test
+description: |
+  Re-enabled the `initialFunds` assertion in the UTxO RPC `ReadGenesis` test now that cardano-rpc resolves initial funds from the genesis `sgExtraConfig`.
diff --git a/cardano-testnet/test/cardano-testnet-test/Cardano/Testnet/Test/Rpc/Genesis.hs b/cardano-testnet/test/cardano-testnet-test/Cardano/Testnet/Test/Rpc/Genesis.hs
index 0e41f577581..65150830d1e 100644
--- a/cardano-testnet/test/cardano-testnet-test/Cardano/Testnet/Test/Rpc/Genesis.hs
+++ b/cardano-testnet/test/cardano-testnet-test/Cardano/Testnet/Test/Rpc/Genesis.hs
@@ -71,11 +71,8 @@ hprop_rpc_read_genesis = integrationRetryWorkspace 2 "rpc-read-genesis" $ \tempA
   H.assertWith (cardanoGenesis ^. U5c.systemStart) $ not . Text.null
   void $ H.nothingFail (cardanoGenesis ^. U5c.maybe'protocolParams)
 
-  -- TODO: re-enable once cardano-rpc resolves initial funds from sgExtraConfig.
-  -- cardano-cli create-testnet-data funds wallets via sgExtraConfig.secInitialFunds and leaves the legacy sgInitialFunds field empty, so the RPC response's initialFunds map is currently always empty for testnet genesis.
-  -- Handler fix pending on cardano-api branch mgalazyn/fix/rpc-initial-funds-extraconfig.
-  -- H.note_ "initialFunds is non-empty: only the uncompacted boot-time genesis carries it, and cardano-testnet funds its wallets there"
-  -- H.assertWith (cardanoGenesis ^. U5c.initialFunds) $ not . Map.null
+  H.note_ "initialFunds is non-empty: only the uncompacted boot-time genesis carries it, and cardano-testnet funds its wallets there"
+  H.assertWith (cardanoGenesis ^. U5c.initialFunds) $ not . Map.null
 
   H.note_ "Byron: protocolConsts, startTime, bootStakeholders"
   protocolConsts <- H.nothingFail (cardanoGenesis ^. U5c.maybe'protocolConsts)