diff --git a/Cargo.lock b/Cargo.lock
index b089ee2..b27f15f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aligned"
 version = "0.3.4"
@@ -482,7 +484,7 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 [[package]]
 name = "stm32-eth"
 version = "0.2.0"
-source = "git+https://github.com/stm32-rs/stm32-eth.git?rev=882553d21#882553d21de4357e610505c9dd19d2abdd32c999"
+source = "git+https://github.com/stm32-rs/stm32-eth.git?rev=3759c5c9#3759c5c99c0ab69bb71759030766bc0fba0b6cde"
 dependencies = [
  "aligned",
  "cortex-m 0.7.4",
diff --git a/Cargo.toml b/Cargo.toml
index c9a2b9a..0a95263 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,8 +22,8 @@ cortex-m = "0.6"
 cortex-m-rt = { version = "0.6", features = ["device"] }
 cortex-m-log = { version = "0.6", features = ["log-integration"] }
 stm32f4xx-hal = { version = "=0.10.1", features = ["rt", "stm32f427", "usb_fs"] }
-stm32-eth = { rev = "882553d21", features = ["stm32f427", "smoltcp-phy"], git = "https://github.com/stm32-rs/stm32-eth.git" }
-smoltcp = { version = "0.7.0", default-features = false, features = ["proto-ipv4", "socket-tcp", "log"] }
+stm32-eth = { rev = "3759c5c9", features = ["stm32f427", "smoltcp-phy"], git = "https://github.com/stm32-rs/stm32-eth.git" }
+smoltcp = { version = "0.7.5", default-features = false, features = ["proto-ipv4", "socket-tcp", "log"] }
 bit_field = "0.10"
 byteorder = { version = "1", default-features = false }
 nom = { version = "5", default-features = false }
diff --git a/flake.nix b/flake.nix
index 6c84438..8ed6067 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,8 +8,8 @@
     let
       pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
       rustManifest = pkgs.fetchurl {
-        url = "https://static.rust-lang.org/dist/2020-10-30/channel-rust-nightly.toml";
-        sha256 = "sha256-4NFISQPmGjbz534No4/ZbXaHT5xbjU25WXgj1MTH0TA=";
+        url = "https://static.rust-lang.org/dist/2021-10-26/channel-rust-nightly.toml";
+        sha256 = "sha256-1hLbypXA+nuH7o3AHCokzSBZAvQxvef4x9+XxO3aBao=";
       };
 
       targets = [