diff --git a/crates/af-move-type/Cargo.toml b/crates/af-move-type/Cargo.toml
index 3a7f8645..9113b7e7 100644
--- a/crates/af-move-type/Cargo.toml
+++ b/crates/af-move-type/Cargo.toml
@@ -28,7 +28,7 @@ workspace = true
 # to this crate
 # https://rust-lang.github.io/rfcs/3516-public-private-dependencies.html
 af-sui-types = { version = "0.18.0", public = true, features = ["u256"], path = "../af-sui-types" }
-bcs          = { version = "0.1", public = true }
+bcs          = { version = "0.2", public = true }
 serde_json   = { version = "1", public = true }
 
 af-move-type-derive = { version = "0.5.0", path = "../af-move-type-derive" }
diff --git a/crates/sui-gql-client/Cargo.toml b/crates/sui-gql-client/Cargo.toml
index fa40a5a1..7710699b 100644
--- a/crates/sui-gql-client/Cargo.toml
+++ b/crates/sui-gql-client/Cargo.toml
@@ -48,7 +48,7 @@ sui-sdk-types = { version = "0.3", public = true, features = ["hash"] }
 graphql-extract = { version = "0.0.12", path = "../graphql-extract" }
 
 async-stream     = { version = "0.3" }
-bcs              = { version = "0.1" }
+bcs              = { version = "0.2" }
 clap             = { version = "4", features = ["derive"] }
 derive_more      = { version = "2", features = ["display"] }
 extension-traits = "2"
@@ -67,7 +67,7 @@ version = "0.18.0"
 
 
 [dev-dependencies]
-bcs        = "0.1"
+bcs        = "0.2"
 clap       = { version = "4", features = ["derive"] }
 color-eyre = "0.6"
 indicatif  = "0.18"
diff --git a/crates/switchboard-sui-sdk/Cargo.toml b/crates/switchboard-sui-sdk/Cargo.toml
index 113fa1fe..cd4f4256 100644
--- a/crates/switchboard-sui-sdk/Cargo.toml
+++ b/crates/switchboard-sui-sdk/Cargo.toml
@@ -39,7 +39,7 @@ sui-sdk-types     = { version = "0.3", public = true }
 af-move-type = { version = "0.18.0", path = "../af-move-type" }
 af-sui-types = { version = "0.18.0", path = "../af-sui-types" }
 
-bcs       = "0.1"
+bcs       = "0.2"
 hex       = "0.4.3"
 serde     = "1"
 thiserror = "2"