diff --git a/flake.lock b/flake.lock
index 1c842cb23f1..eb8c0904bc8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2285,6 +2285,22 @@
         "type": "indirect"
       }
     },
+    "nixpkgs_14": {
+      "locked": {
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1718428119,
@@ -2555,7 +2571,8 @@
           "nixpkgs"
         ],
         "nixpkgsLatest": "nixpkgsLatest",
-        "process-compose-flake": "process-compose-flake"
+        "process-compose-flake": "process-compose-flake",
+        "rust-overlay": "rust-overlay_2"
       }
     },
     "rust-overlay": {
@@ -2576,6 +2593,24 @@
         "type": "github"
       }
     },
+    "rust-overlay_2": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_14"
+      },
+      "locked": {
+        "lastModified": 1733970833,
+        "narHash": "sha256-sPEKtSaZk2CtfF9cdhtbY93S6qGq+d2PKI1fcoDfDaI=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "f7f4c59ccdf1bec3f1547d27398e9589aa94e3e8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
     "secp256k1": {
       "flake": false,
       "locked": {
diff --git a/flake.nix b/flake.nix
index 4e6c296437f..feb978a1ae9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,6 +23,7 @@
     cardano-node.url = "github:intersectmbo/cardano-node/10.1.2";
     mithril.url = "github:input-output-hk/mithril/2442.0";
     nix-npm-buildpackage.url = "github:serokell/nix-npm-buildpackage";
+    rust-overlay.url = "github:oxalica/rust-overlay";
   };
 
   outputs =
@@ -32,6 +33,7 @@
       # TODO remove when haskellNix updated to newer nixpkgs
     , nixpkgsLatest
     , cardano-node
+    , rust-overlay
     , ...
     } @ inputs:
     flake-parts.lib.mkFlake { inherit inputs; } {
@@ -69,6 +71,7 @@
               # Custom static libs used for darwin build
               (import ./nix/static-libs.nix)
               inputs.nix-npm-buildpackage.overlays.default
+              (import rust-overlay)
               # Specific versions of tools we require
               (final: prev: {
                 aiken = inputs.aiken.packages.${system}.aiken;
diff --git a/nix/hydra/shell.nix b/nix/hydra/shell.nix
index 748ca12e882..bf1a1404ab0 100644
--- a/nix/hydra/shell.nix
+++ b/nix/hydra/shell.nix
@@ -53,6 +53,7 @@ let
     pkgs.yq
     # Use latest jq in all shells, to avoid 1.6 bug with large integers.
     pkgsLatest.jq
+    pkgs.rust-bin.beta.latest.default
   ];
 
   libs = [