diff --git a/Cargo.lock b/Cargo.lock
index 081889e..082eb1e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -422,8 +422,7 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 [[package]]
 name = "plonky2"
 version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85f26b090b989aebdeaf6a4eed748c1fbcabf67e7273a22e4e0c877b63846d0f"
+source = "git+https://github.com/distributed-lab/plonky2?branch=stable#140282e3850a2bc5e7c0ef3c4cd35a006e68a9b3"
 dependencies = [
  "ahash",
  "anyhow",
@@ -456,8 +455,7 @@ dependencies = [
 [[package]]
 name = "plonky2_field"
 version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a1dca60ad900d81b1fe2df3d0b88d43345988e2935e6709176e96573f4bcf5d"
+source = "git+https://github.com/distributed-lab/plonky2?branch=stable#140282e3850a2bc5e7c0ef3c4cd35a006e68a9b3"
 dependencies = [
  "anyhow",
  "itertools",
@@ -472,8 +470,7 @@ dependencies = [
 [[package]]
 name = "plonky2_maybe_rayon"
 version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "92ff44a90aaca13e10e7ddf8fab815ba1b404c3f7c3ca82aaf11c46beabaa923"
+source = "git+https://github.com/distributed-lab/plonky2?branch=stable#140282e3850a2bc5e7c0ef3c4cd35a006e68a9b3"
 dependencies = [
  "rayon",
 ]
@@ -481,8 +478,7 @@ dependencies = [
 [[package]]
 name = "plonky2_util"
 version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b16136f5f3019c1e83035af76cccddd56d789a5e2933306270185c3f99f12259"
+source = "git+https://github.com/distributed-lab/plonky2?branch=stable#140282e3850a2bc5e7c0ef3c4cd35a006e68a9b3"
 
 [[package]]
 name = "ppv-lite86"
diff --git a/Cargo.toml b/Cargo.toml
index 9054110..4b9ab0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ authors = ["Distributed Lab"]
 keywords = ["crypto", "no-std", "blockchain", "cryptography"]
 
 [dependencies]
-plonky2 = "0.2.2"
+plonky2 = { git = "https://github.com/distributed-lab/plonky2", branch = "stable"}
 snafu = "0.8.5"
 
 [dev-dependencies]
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 07ade69..0000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-nightly
\ No newline at end of file