diff --git a/rust/gbt/Cargo.lock b/rust/gbt/Cargo.lock
index d7ac48ec7..ed0b1c783 100644
--- a/rust/gbt/Cargo.lock
+++ b/rust/gbt/Cargo.lock
@@ -93,7 +93,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad291aa74992b9b7a7e88c38acbbf6ad7e107f1d90ee8775b7bc1fc3394f485c"
 dependencies = [
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
@@ -159,12 +159,12 @@ checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "libloading"
-version = "0.8.3"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19"
+checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f"
 dependencies = [
  "cfg-if",
- "windows-targets",
+ "winapi",
 ]
 
 [[package]]
@@ -199,9 +199,9 @@ dependencies = [
 
 [[package]]
 name = "napi"
-version = "2.16.0"
+version = "2.13.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54a63d0570e4c3e0daf7a8d380563610e159f538e20448d6c911337246f40e84"
+checksum = "fd063c93b900149304e3ba96ce5bf210cd4f81ef5eb80ded0d100df3e85a3ac0"
 dependencies = [
  "bitflags",
  "ctor",
@@ -213,29 +213,29 @@ dependencies = [
 
 [[package]]
 name = "napi-build"
-version = "2.1.2"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f9130fccc5f763cf2069b34a089a18f0d0883c66aceb81f2fad541a3d823c43"
+checksum = "882a73d9ef23e8dc2ebbffb6a6ae2ef467c0f18ac10711e4cc59c5485d41df0e"
 
 [[package]]
 name = "napi-derive"
-version = "2.16.0"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05bb7c37e3c1dda9312fdbe4a9fc7507fca72288ba154ec093e2d49114e727ce"
+checksum = "da1c6a8fa84d549aa8708fcd062372bf8ec6e849de39016ab921067d21bde367"
 dependencies = [
  "cfg-if",
  "convert_case",
  "napi-derive-backend",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
 name = "napi-derive-backend"
-version = "1.0.62"
+version = "1.0.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f785a8b8d7b83e925f5aa6d2ae3c159d17fe137ac368dc185bef410e7acdaeb4"
+checksum = "20bbc7c69168d06a848f925ec5f0e0997f98e8c8d4f2cc30157f0da51c009e17"
 dependencies = [
  "convert_case",
  "once_cell",
@@ -243,14 +243,14 @@ dependencies = [
  "quote",
  "regex",
  "semver",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
 name = "napi-sys"
-version = "2.3.0"
+version = "2.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2503fa6af34dc83fb74888df8b22afe933b58d37daf7d80424b1c60c68196b8b"
+checksum = "166b5ef52a3ab5575047a9fe8d4a030cdd0f63c96f071cd6907674453b07bae3"
 dependencies = [
  "libloading",
 ]
@@ -333,14 +333,14 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.10.3"
+version = "1.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
+checksum = "ebee201405406dbf528b8b672104ae6d6d63e6d118cb10e4d51abbc7b58044ff"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata 0.4.6",
- "regex-syntax 0.8.2",
+ "regex-automata 0.3.9",
+ "regex-syntax 0.7.5",
 ]
 
 [[package]]
@@ -354,13 +354,13 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.6"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
+checksum = "59b23e92ee4318893fa3fe3e6fb365258efbfe6ac6ab30f090cdcbb7aa37efa9"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax 0.8.2",
+ "regex-syntax 0.7.5",
 ]
 
 [[package]]
@@ -371,9 +371,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "regex-syntax"
-version = "0.8.2"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
+checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
 
 [[package]]
 name = "rustc-demangle"
@@ -402,6 +402,17 @@ version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
 
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.52"
@@ -453,7 +464,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
@@ -534,60 +545,3 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "windows-targets"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7dd37b7e5ab9018759f893a1952c9420d060016fc19a472b4bb20d1bdd694d1b"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcf46cf4c365c6f2d1cc93ce535f2c8b244591df96ceee75d8e83deb70a9cac9"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da9f259dd3bcf6990b55bffd094c4f7235817ba4ceebde8e6d11cd0c5633b675"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b474d8268f99e0995f25b9f095bc7434632601028cf86590aea5c8a5cb7801d3"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1515e9a29e5bed743cb4415a9ecf5dfca648ce85ee42e15873c3cd8610ff8e02"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5eee091590e89cc02ad514ffe3ead9eb6b660aedca2183455434b93546371a03"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77ca79f2451b49fa9e2af39f0747fe999fcda4f5e241b2898624dca97a1f2177"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.52.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
diff --git a/rust/gbt/Cargo.toml b/rust/gbt/Cargo.toml
index c6e736762..898912881 100644
--- a/rust/gbt/Cargo.toml
+++ b/rust/gbt/Cargo.toml
@@ -14,15 +14,15 @@ crate-type = ["cdylib"]
 [dependencies]
 priority-queue = "2.0.2"
 bytes = "1.4.0"
-napi = { version = "2.16.0", features = ["napi8", "tokio_rt"] }
-napi-derive = "2.16.0"
+napi = { version = "2.0", features = ["napi8", "tokio_rt"] }
+napi-derive = "2.0"
 bytemuck = "1.13.1"
 tracing = "0.1.36"
 tracing-log = "0.2.0"
 tracing-subscriber = { version = "0.3.15", features = ["env-filter"]}
 
 [build-dependencies]
-napi-build = "2.1.2"
+napi-build = "2.0"
 
 [profile.release]
 lto = true
diff --git a/rust/gbt/rust-toolchain b/rust/gbt/rust-toolchain
index 5b6cd6b3c..58e4eb6b2 100644
--- a/rust/gbt/rust-toolchain
+++ b/rust/gbt/rust-toolchain
@@ -1 +1 @@
-1.65
+1.63