diff --git a/flake.lock b/flake.lock
index 36e9f0c..b991644 100644
--- a/flake.lock
+++ b/flake.lock
@@ -24345,17 +24345,17 @@
         "nix-bundle-lgx": "nix-bundle-lgx_40"
       },
       "locked": {
-        "lastModified": 1782313954,
-        "narHash": "sha256-psh5EtcIZh6kzFD4pQDT8bae9JS9eVtk5nPWxR2aGSA=",
-        "owner": "logos-blockchain",
+        "lastModified": 1784205966,
+        "narHash": "sha256-9qDpsio9ms7sz2yf8umH2bZLL4esjNuNDWUvsPzdNYc=",
+        "owner": "gravityblast",
         "repo": "logos-execution-zone-module",
-        "rev": "d2e9400ac06c3cdbfc2405b4f153fff9841a453c",
+        "rev": "a48fd1c7447885895c15a929b945b713cebf2032",
         "type": "github"
       },
       "original": {
-        "owner": "logos-blockchain",
+        "owner": "gravityblast",
+        "ref": "fix/generic-tx-bstr-serialization",
         "repo": "logos-execution-zone-module",
-        "rev": "d2e9400ac06c3cdbfc2405b4f153fff9841a453c",
         "type": "github"
       }
     },
diff --git a/flake.nix b/flake.nix
index b0a9e2d..00ad945 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,7 +21,11 @@
     # match the metadata.json `dependencies` entry so the builder can resolve
     # it as a module dependency. This rev pins LEZ (lssa) at fb8cbac4, which
     # includes the macOS Metal-build fix, so no `--override-input` is needed.
-    logos_execution_zone.url = "github:logos-blockchain/logos-execution-zone-module?rev=d2e9400ac06c3cdbfc2405b4f153fff9841a453c";
+    # Fork of logos-blockchain/logos-execution-zone-module @ d2e9400a with the
+    # QtRO serialization fix: send_generic_public_transaction's `instruction` and
+    # `program_dependencies` use byte-string IPC types so the args survive the
+    # cross-process boundary. See docs/amm-swap-qtro-serialization-bug.md.
+    logos_execution_zone.url = "github:gravityblast/logos-execution-zone-module?ref=fix/generic-tx-bstr-serialization";
   };
 
   outputs =
diff --git a/programs/amm/client-ffi/Cargo.toml b/programs/amm/client-ffi/Cargo.toml
index 5015f5e..cd915d3 100644
--- a/programs/amm/client-ffi/Cargo.toml
+++ b/programs/amm/client-ffi/Cargo.toml
@@ -20,7 +20,7 @@ workspace = true
 [dependencies]
 amm_core = { path = "../core" }
 twap_oracle_core = { path = "../../twap_oracle/core" }
-nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0-rc6", features = ["host"], package = "lee_core" }
+nssa_core = { git = "https://github.com/logos-blockchain/logos-execution-zone.git", tag = "v0.2.0", features = ["host"], package = "lee_core" }
 borsh = { version = "1.5", features = ["derive"] }
 risc0-zkvm = { version = "=3.0.5", default-features = false }
 risc0-binfmt = { version = "=3.0.4", default-features = false }