diff --git a/Cargo.toml b/Cargo.toml
index 076572e..ee86fdf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,11 +9,11 @@ overflow-checks = true     # Disable integer overflow checks.
 
 
 [workspace.dependencies]
-cosmwasm-schema  = "=1.4.1"
-cosmwasm-std     = { version = "=1.4.1", features = ["stargate"] }
-cw2              = "1.1.1"
-cw-storage-plus  = "1.1.0"
-cw-utils         = "1.0.2"
+cosmwasm-schema  = "=1.5.5"
+cosmwasm-std     = { version = "=1.5.5", features = ["stargate"] }
+cw2              = "1.1.2"
+cw-storage-plus  = "1.2.0"
+cw-utils         = "1.0.3"
 hex              = "0.4"
 sha2             = { version = "0.10.8", features = ["oid"]}
 thiserror        = "1"
diff --git a/README.md b/README.md
index c4e1df3..75e0ac4 100644
--- a/README.md
+++ b/README.md
@@ -5,5 +5,5 @@
  docker run --rm -v "$(pwd)":/code \
   --mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
   --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
-  cosmwasm/optimizer:0.15.1
+  cosmwasm/optimizer:0.16.0
 ```
\ No newline at end of file
diff --git a/contracts/account/Cargo.toml b/contracts/account/Cargo.toml
index 4f934f2..21b73bb 100644
--- a/contracts/account/Cargo.toml
+++ b/contracts/account/Cargo.toml
@@ -8,24 +8,24 @@ edition = "2021"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-absacc            = { git = "https://github.com/larry0x/abstract-account.git" }
-cosmwasm-schema   = { workspace = true }
-cosmwasm-std      = { workspace = true }
-cw2               = { workspace = true }
-cw-storage-plus   = { workspace = true }
-sha2              = { workspace = true }
-thiserror         = { workspace = true }
-serde             = { workspace = true }
-serde_json        = { workspace = true }
-tiny-keccak       = { workspace = true }
-schemars          = { workspace = true }
-hex               = { workspace = true }
-ripemd            = { workspace = true }
-bech32            = { workspace = true }
-base64            = { workspace = true }
-phf               = { workspace = true }
-rsa               = { workspace = true }
-getrandom         = { workspace = true }
-p256              = { workspace = true }
-prost = { workspace = true }
+absacc             = { git = "https://github.com/larry0x/abstract-account.git" }
+cosmwasm-schema    = { workspace = true }
+cosmwasm-std       = { workspace = true }
+cw2                = { workspace = true }
+cw-storage-plus    = { workspace = true }
+sha2               = { workspace = true }
+thiserror          = { workspace = true }
+serde              = { workspace = true }
+serde_json         = { workspace = true }
+tiny-keccak        = { workspace = true }
+schemars           = { workspace = true }
+hex                = { workspace = true }
+ripemd             = { workspace = true }
+bech32             = { workspace = true }
+base64             = { workspace = true }
+phf                = { workspace = true }
+rsa                = { workspace = true }
+getrandom          = { workspace = true }
+p256               = { workspace = true }
+prost              = { workspace = true }
 osmosis-std-derive = { workspace = true }
diff --git a/contracts/account/src/auth/jwt.rs b/contracts/account/src/auth/jwt.rs
index 8500f9b..a881176 100644
--- a/contracts/account/src/auth/jwt.rs
+++ b/contracts/account/src/auth/jwt.rs
@@ -55,7 +55,7 @@ pub fn verify(
     components.next().ok_or(InvalidToken)?; // ignore the header, it is not currently used
     let payload_bytes = components.next().ok_or(InvalidToken)?;
     let payload = URL_SAFE_NO_PAD.decode(payload_bytes)?;
-    let claims: Claims = cosmwasm_std::from_slice(payload.as_slice())?;
+    let claims: Claims = cosmwasm_std::from_json(payload.as_slice())?;
 
     // make sure the provided hash matches the one from the tx
     if tx_hash.eq(&claims.transaction_hash) {
diff --git a/contracts/account/src/contract.rs b/contracts/account/src/contract.rs
index 23d4e68..f570932 100644
--- a/contracts/account/src/contract.rs
+++ b/contracts/account/src/contract.rs
@@ -1,5 +1,5 @@
 use cosmwasm_std::{
-    entry_point, to_binary, Binary, Deps, DepsMut, Env, MessageInfo, Response, StdResult,
+    entry_point, to_json_binary, Binary, Deps, DepsMut, Env, MessageInfo, Response, StdResult,
 };
 
 use absacc::AccountSudoMsg;
@@ -69,9 +69,9 @@ pub fn execute(
 #[entry_point]
 pub fn query(deps: Deps, _env: Env, msg: QueryMsg) -> StdResult<Binary> {
     match msg {
-        QueryMsg::AuthenticatorIDs {} => to_binary(&query::authenticator_ids(deps.storage)?),
+        QueryMsg::AuthenticatorIDs {} => to_json_binary(&query::authenticator_ids(deps.storage)?),
         QueryMsg::AuthenticatorByID { id } => {
-            to_binary(&query::authenticator_by_id(deps.storage, id)?)
+            to_json_binary(&query::authenticator_by_id(deps.storage, id)?)
         }
     }
 }
diff --git a/contracts/account/src/query.rs b/contracts/account/src/query.rs
index 95ce0de..7c1c3fc 100644
--- a/contracts/account/src/query.rs
+++ b/contracts/account/src/query.rs
@@ -12,7 +12,7 @@ pub fn authenticator_ids(store: &dyn Storage) -> StdResult<Vec<u8>> {
 pub fn authenticator_by_id(store: &dyn Storage, id: u8) -> StdResult<String> {
     let auth = AUTHENTICATORS.load(store, id)?;
 
-    match cosmwasm_std::to_binary(&auth) {
+    match cosmwasm_std::to_json_binary(&auth) {
         Ok(auth_bz) => Ok(auth_bz.to_string()),
         Err(error) => Err(StdError::GenericErr {
             msg: error.to_string(),
diff --git a/contracts/treasury/src/contract.rs b/contracts/treasury/src/contract.rs
index 10b7090..82007a7 100644
--- a/contracts/treasury/src/contract.rs
+++ b/contracts/treasury/src/contract.rs
@@ -2,7 +2,7 @@ use crate::error::ContractResult;
 use crate::msg::{ExecuteMsg, InstantiateMsg, QueryMsg};
 use crate::{execute, query, CONTRACT_NAME, CONTRACT_VERSION};
 use cosmwasm_std::{
-    entry_point, to_binary, Binary, Deps, DepsMut, Env, MessageInfo, Response, StdResult,
+    entry_point, to_json_binary, Binary, Deps, DepsMut, Env, MessageInfo, Response, StdResult,
 };
 
 #[entry_point]
@@ -43,11 +43,11 @@ pub fn execute(
 #[entry_point]
 pub fn query(deps: Deps, _env: Env, msg: QueryMsg) -> StdResult<Binary> {
     match msg {
-        QueryMsg::GrantConfigByTypeUrl { msg_type_url } => to_binary(
+        QueryMsg::GrantConfigByTypeUrl { msg_type_url } => to_json_binary(
             &query::grant_config_by_type_url(deps.storage, msg_type_url)?,
         ),
         QueryMsg::GrantConfigTypeUrls {} => {
-            to_binary(&query::grant_config_type_urls(deps.storage)?)
+            to_json_binary(&query::grant_config_type_urls(deps.storage)?)
         }
     }
 }