diff --git a/cabal.project b/cabal.project
index 222e236358d..6ded03c0781 100644
--- a/cabal.project
+++ b/cabal.project
@@ -12,8 +12,8 @@ repository cardano-haskell-packages
 
 -- See CONTRIBUTING.md for information about when and how to update these.
 index-state:
-  , hackage.haskell.org 2024-09-25T13:28:12Z
-  , cardano-haskell-packages 2024-09-23T21:46:49Z
+  , hackage.haskell.org 2024-10-14T02:12:15Z
+  , cardano-haskell-packages 2024-10-11T15:49:11Z
 
 packages:
   hydra-prelude
@@ -44,10 +44,3 @@ test-show-details: direct
 
 program-options
   ghc-options: -fwrite-ide-info
-
-source-repository-package
-  type: git
-  location: https://github.com/IntersectMBO/cardano-api
-  tag: 00f025d1fda127d0f7b2e69227e298199bea1fe1
-  --sha256: sha256-GttvKWo+2SytPW59a1JIYSpdlTr+7mcWvvK+EPAgH/k=
-  subdir: cardano-api
diff --git a/flake.lock b/flake.lock
index 3ab0c44c885..4cab962f6f2 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "CHaP": {
       "flake": false,
       "locked": {
-        "lastModified": 1727170555,
-        "narHash": "sha256-kxB/xjSjqym5kKYDw/CZMb6O1OfCVWRjjsuqyWABd0w=",
+        "lastModified": 1728663083,
+        "narHash": "sha256-ejmJzPYPKdIwN53Arz3ycNcMO1YnS4k4uSBC7XeBRsQ=",
         "owner": "IntersectMBO",
         "repo": "cardano-haskell-packages",
-        "rev": "d8beaf7e30330f8a70e626f63a5b47d1999fbf4b",
+        "rev": "16d7391e69a69b9954acf097ffca3bda61a4faf0",
         "type": "github"
       },
       "original": {
@@ -871,11 +871,11 @@
     "hackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1727742653,
-        "narHash": "sha256-9qfnzdRco5WVW9sJH8oKrcYmPHPIRUyhGaSELHcAq2I=",
+        "lastModified": 1728865757,
+        "narHash": "sha256-DzxFSTuiXPEDB59v4sS0K57UhR70cxYtj8F52y9Mi4k=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "d7553bdfc658e7eb30a5f730192bc9f83e65a8ba",
+        "rev": "8f2ba6cde8ee8f8eac0593284c3465e39c51a50a",
         "type": "github"
       },
       "original": {
@@ -997,11 +997,11 @@
         "stackage": "stackage_2"
       },
       "locked": {
-        "lastModified": 1727225466,
-        "narHash": "sha256-NFhTqLbfvvAmM2JDTMHtWNN137fBMmP5bncxNT/9eY8=",
+        "lastModified": 1728867069,
+        "narHash": "sha256-acQ+3ZTHDKhujhiaCmKJstJlJsRaFgglP3W5FFvZjy8=",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "e1360464083ee3e22cbbba660b70ff41734a1cba",
+        "rev": "5de65a1fb68cae2a7503eac9f1c314568227d764",
         "type": "github"
       },
       "original": {
@@ -2118,11 +2118,11 @@
     },
     "nixpkgs-2405": {
       "locked": {
-        "lastModified": 1720122915,
-        "narHash": "sha256-Nby8WWxj0elBu1xuRaUcRjPi/rU3xVbkAt2kj4QwX2U=",
+        "lastModified": 1726447378,
+        "narHash": "sha256-2yV8nmYE1p9lfmLHhOCbYwQC/W8WYfGQABoGzJOb1JQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "835cf2d3f37989c5db6585a28de967a667a75fb1",
+        "rev": "086b448a5d54fd117f4dc2dee55c9f0ff461bdc1",
         "type": "github"
       },
       "original": {
@@ -2218,11 +2218,11 @@
     },
     "nixpkgs-unstable_2": {
       "locked": {
-        "lastModified": 1720181791,
-        "narHash": "sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8=",
+        "lastModified": 1726583932,
+        "narHash": "sha256-zACxiQx8knB3F8+Ze+1BpiYrI+CbhxyWpcSID9kVhkQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb",
+        "rev": "658e7223191d2598641d50ee4e898126768fe847",
         "type": "github"
       },
       "original": {
@@ -2687,11 +2687,11 @@
     "stackage_2": {
       "flake": false,
       "locked": {
-        "lastModified": 1727223062,
-        "narHash": "sha256-j3hoqYsoPWtxLrgYfLEfL0AF2MbXmQszkRIonL2vl0M=",
+        "lastModified": 1728691846,
+        "narHash": "sha256-WXPaGfa8D64YjKU31HOIx2cLfYkMfZT9yYO2XdYUerA=",
         "owner": "input-output-hk",
         "repo": "stackage.nix",
-        "rev": "543f929fa829ba51d63e8a7d14f84d0be819f2d4",
+        "rev": "38e3ccb33364353514117c552b7362295ea5b02e",
         "type": "github"
       },
       "original": {
diff --git a/hydra-cardano-api/hydra-cardano-api.cabal b/hydra-cardano-api/hydra-cardano-api.cabal
index 3068af30f91..a8e8c7a7cf4 100644
--- a/hydra-cardano-api/hydra-cardano-api.cabal
+++ b/hydra-cardano-api/hydra-cardano-api.cabal
@@ -82,7 +82,7 @@ library
     , base                    >=4.16
     , base16-bytestring
     , bytestring
-    , cardano-api             ^>=9.3
+    , cardano-api             ^>=9.4
     , cardano-binary
     , cardano-crypto-class
     , cardano-ledger-allegra