diff --git a/Cargo.lock b/Cargo.lock
index 4173ba7..854bfd6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -13,9 +13,9 @@ dependencies = [
  "panic-abort 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "panic-semihosting 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "smoltcp 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "stm32-eth 0.1.0 (git+https://github.com/stm32-rs/stm32-eth.git)",
+ "stm32-eth 0.1.0 (git+https://github.com/stm32-rs/stm32-eth)",
  "stm32f4 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal.git)",
+ "stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal)",
 ]
 
 [[package]]
@@ -255,13 +255,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "stm32-eth"
 version = "0.1.0"
-source = "git+https://github.com/stm32-rs/stm32-eth.git#2c0f9daf91dc5f0a6cca3f69f0002fd045e25608"
+source = "git+https://github.com/stm32-rs/stm32-eth#2c0f9daf91dc5f0a6cca3f69f0002fd045e25608"
 dependencies = [
  "aligned 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cortex-m-semihosting 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "smoltcp 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal.git)",
+ "stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal)",
  "volatile-register 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -279,7 +279,7 @@ dependencies = [
 [[package]]
 name = "stm32f4xx-hal"
 version = "0.3.0"
-source = "git+https://github.com/stm32-rs/stm32f4xx-hal.git#9b882864619c9b41579bd73adadb4718fbd6caec"
+source = "git+https://github.com/stm32-rs/stm32f4xx-hal#469d551aad67c2a8572698d62a59be3fbe2d4c96"
 dependencies = [
  "bare-metal 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "cast 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -362,9 +362,9 @@ dependencies = [
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum smoltcp 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fef582369edb298c6c41319a544ca9c4e83622f226055ccfcb35974fbb55ed34"
 "checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
-"checksum stm32-eth 0.1.0 (git+https://github.com/stm32-rs/stm32-eth.git)" = "<none>"
+"checksum stm32-eth 0.1.0 (git+https://github.com/stm32-rs/stm32-eth)" = "<none>"
 "checksum stm32f4 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c590c1a30e6514af93d84ef3953c85ab81f12ba7fd1568703507038a34afde5d"
-"checksum stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal.git)" = "<none>"
+"checksum stm32f4xx-hal 0.3.0 (git+https://github.com/stm32-rs/stm32f4xx-hal)" = "<none>"
 "checksum syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)" = "525bd55255f03c816e5d7f615587bd13030c7103354fadb104993dcee6a788ec"
 "checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
diff --git a/Cargo.toml b/Cargo.toml
index b15435d..f67ed06 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,9 +28,9 @@ cortex-m-log = { version = "0.4", features = ["log-integration"] }
 stm32f4 = { version = "0.6", features = ["rt", "stm32f429"] }
 embedded-hal = "0.2"
 #stm32f4xx-hal = { version = "0.3.0", features = ["rt", "stm32f429"] }
-stm32f4xx-hal = { git = "https://github.com/stm32-rs/stm32f4xx-hal.git", features = ["rt", "stm32f429"] }
-#stm32-eth = { version = "0.1.1", features = ["smoltcp-phy", "nucleo-f429zi"] }
-stm32-eth = { git = "https://github.com/stm32-rs/stm32-eth.git", features = ["smoltcp-phy", "nucleo-f429zi"] }
+stm32f4xx-hal = { git = "https://github.com/stm32-rs/stm32f4xx-hal", features = ["rt", "stm32f429"] }
+#stm32-eth = { version = "0.1.0", features = ["smoltcp-phy", "nucleo-f429zi"] }
+stm32-eth = { git = "https://github.com/stm32-rs/stm32-eth", features = ["smoltcp-phy", "nucleo-f429zi"] }
 smoltcp = { version = "0.5.0", default-features = false, features = ["proto-ipv4", "socket-tcp", "log"] }
 
 [features]
diff --git a/nix/adc2tcp.nix b/nix/adc2tcp.nix
index dcebd94..3d74223 100644
--- a/nix/adc2tcp.nix
+++ b/nix/adc2tcp.nix
@@ -1,13 +1,45 @@
-{ stdenv, rustPlatform }:
+{ stdenv, rustPlatform, cacert, git, cargo-vendor }:
 
 with rustPlatform;
+let
+  fetchcargo = import ./fetchcargo.nix {
+    inherit stdenv cacert git cargo-vendor;
+    inherit (rust) cargo;
+  };
+  adc2tcpDeps = fetchcargo {
+    name = "adc2tcp-deps";
+    src = ../.;
+    sha256 = "1wddmsdsqwfzld43g12l2r60ndfwi8ihwm03zzcs9722sirw49fz";
+  };
+in
 
 buildRustPackage rec {
   name = "adc2tcp";
   version = "0.0.0";
 
   src = ../.;
-  cargoSha256 = "0q3cn3jzgmrqiymisxymn19vbnnpsj7if052w5zh25x9ikin6lpl";
+  cargoSha256 = "1wddmsdsqwfzld43g12l2r60ndfwi8ihwm03zzcs9722sirw49fz";
+
+  buildInputs = [ adc2tcpDeps ];
+  patchPhase = ''
+    cat >> .cargo/config <<EOF
+    [source.crates-io]
+    replace-with = "vendored-sources"
+
+    [source.vendored-sources]
+    directory = "${adc2tcpDeps}"
+
+    [source."https://github.com/stm32-rs/stm32f4xx-hal"]
+    git = "https://github.com/stm32-rs/stm32f4xx-hal"
+    branch = "master"
+    replace-with = "vendored-sources"
+
+    [source."https://github.com/stm32-rs/stm32-eth"]
+    git = "https://github.com/stm32-rs/stm32-eth"
+    branch = "master"
+    replace-with = "vendored-sources"
+    EOF
+  '';
 
   doCheck = false;
   installPhase = ''
diff --git a/nix/fetchcargo.nix b/nix/fetchcargo.nix
new file mode 100644
index 0000000..6195a72
--- /dev/null
+++ b/nix/fetchcargo.nix
@@ -0,0 +1,35 @@
+{ stdenv, cacert, git, cargo, cargo-vendor }:
+{ name, src, sha256 }:
+stdenv.mkDerivation {
+  name = "${name}-vendor";
+  nativeBuildInputs = [ cacert git cargo cargo-vendor ];
+  inherit src;
+
+  phases = "unpackPhase patchPhase installPhase";
+
+  installPhase = ''
+    if [[ ! -f Cargo.lock ]]; then
+        echo
+        echo "ERROR: The Cargo.lock file doesn't exist"
+        echo
+        echo "Cargo.lock is needed to make sure that cargoSha256 doesn't change"
+        echo "when the registry is updated."
+        echo
+
+        exit 1
+    fi
+
+    export CARGO_HOME=$(mktemp -d cargo-home.XXX)
+
+    cargo vendor
+
+    cp -ar vendor $out
+  '';
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = sha256;
+
+  impureEnvVars = stdenv.lib.fetchers.proxyImpureEnvVars;
+  preferLocalBuild = true;
+}