diff --git a/Cargo.toml b/Cargo.toml
index efa8a6d..f6fbdc5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,10 +16,9 @@ categories = ["cryptography::cryptocurrencies"]
 json                = "0.12.4"
 openssl             = { version = "0.10", features = ["vendored"] }
 reqwest             = { version = "0.10.8", features = ["blocking"] }
-serde_json          = "1.0.57"
-ergo-lib            = "0.2.0"
-# ergo-lib         = { git = "https://github.com/ergoplatform/sigma-rust/", branch = "develop" }
-thiserror           = "1.0.20"
-blake2b_simd        = "0.5.10"
+serde_json          = "1.0.59"
+ergo-lib            = "0.3.0"
+thiserror           = "1.0.22"
+blake2b_simd        = "0.5.11"
 base16              = "0.2.1"
 yaml-rust           = "0.4.4"
\ No newline at end of file