diff --git a/Cargo.lock b/Cargo.lock
index fc6c21d5..0ef64c97 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3127,8 +3127,7 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 [[package]]
 name = "twenty-first"
 version = "0.41.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "453cce0ee28de3ffeb768cb158ffebbe55a9cd6bfb7bada1fac2d1853597c3bf"
+source = "git+https://github.com/Neptune-Crypto/twenty-first.git?rev=0d2cb98c0495d30e53d28e82a35de44dc655c3ea#0d2cb98c0495d30e53d28e82a35de44dc655c3ea"
 dependencies = [
  "arbitrary",
  "bfieldcodec_derive",
diff --git a/Cargo.toml b/Cargo.toml
index 575eae75..4ba28647 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,7 +46,7 @@ tarpc = { version = "^0.34", features = [
     "serde-transport-json",
     "tcp",
 ] }
-tasm-lib = { git = "https://github.com/TritonVM/tasm-lib.git", rev = "694f27daf78aade0ed0dc07e3babaab036cd5572" }
+tasm-lib = "0.2.1"
 tiny-bip39 = "1.0"
 tokio = { version = "1.37", features = ["full", "tracing"] }
 tokio-serde = { version = "0.8", features = ["bincode", "json"] }
@@ -121,3 +121,10 @@ harness = false
 [[bench]]
 name = "archival_mmr"
 harness = false
+
+[patch.crates-io]
+# 694f27daf78aade0ed0dc07e3babaab036cd5572 is tip of branch: master as of 2024-04-30
+tasm-lib = { git = "https://github.com/TritonVM/tasm-lib.git", rev = "694f27daf78aade0ed0dc07e3babaab036cd5572" }
+
+# 0d2cb98c0495d30e53d28e82a35de44dc655c3ea = tip of branch: master,  on 2024-04-24
+twenty-first = { git = "https://github.com/Neptune-Crypto/twenty-first.git", rev = "0d2cb98c0495d30e53d28e82a35de44dc655c3ea" }
\ No newline at end of file
diff --git a/src/models/blockchain/block/block_selector.rs b/src/models/blockchain/block/block_selector.rs
index 6fe59114..c52072fb 100644
--- a/src/models/blockchain/block/block_selector.rs
+++ b/src/models/blockchain/block/block_selector.rs
@@ -15,7 +15,7 @@
 
 use super::block_height::BlockHeight;
 use crate::models::state::GlobalState;
-use crate::twenty_first::error::FromHexDigestError;
+use crate::twenty_first::error::TryFromHexDigestError;
 use crate::twenty_first::math::digest::Digest;
 use serde::{Deserialize, Serialize};
 use std::num::ParseIntError;
@@ -62,7 +62,7 @@ pub enum BlockSelectorParseError {
     WrongSelectorLength(usize),
 
     #[error("Bad Digest")]
-    BadDigest(#[from] FromHexDigestError),
+    BadDigest(#[from] TryFromHexDigestError),
 
     #[error("Bad Height")]
     BadHeight(#[from] ParseIntError),