diff --git a/flake.lock b/flake.lock
index c00234b..aea64b7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -23,17 +23,17 @@
         "rust-overlay": "rust-overlay"
       },
       "locked": {
-        "lastModified": 1776356581,
-        "narHash": "sha256-sobcZML04NQCxSe5Vyyxj2avPPP1MjvgBbI2rzalebA=",
+        "lastModified": 1776426251,
+        "narHash": "sha256-PItVsNZloFDyW0O/N0AIDImmhy/ok+T4771dcm/zXrc=",
         "owner": "logos-blockchain",
         "repo": "logos-blockchain",
-        "rev": "fd7996bbdc2f77ce83bfa7d1777bbfdb3f87997b",
+        "rev": "86e3e86f78bc3a7219b1f1d169f31854dbb7344b",
         "type": "github"
       },
       "original": {
         "owner": "logos-blockchain",
-        "ref": "feat/c-bindings/get-block-and-tx",
         "repo": "logos-blockchain",
+        "rev": "86e3e86f78bc3a7219b1f1d169f31854dbb7344b",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index 245954c..cf68cf4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,7 +7,7 @@
     logos-liblogos.url = "github:logos-co/logos-liblogos";
     logos-core.url = "github:logos-co/logos-cpp-sdk";
 
-    logos-blockchain.url = "github:logos-blockchain/logos-blockchain?ref=feat/c-bindings/get-block-and-tx";
+    logos-blockchain.url = "github:logos-blockchain/logos-blockchain?rev=86e3e86f78bc3a7219b1f1d169f31854dbb7344b"; # v0.2.1 + new FFIs
 
     logos-module-viewer.url = "github:logos-co/logos-module-viewer";
   };