diff --git a/contracts/snip20_derivative/src/contract.rs b/contracts/snip20_derivative/src/contract.rs
index 67a9bd94..43b1cfb7 100644
--- a/contracts/snip20_derivative/src/contract.rs
+++ b/contracts/snip20_derivative/src/contract.rs
@@ -39,7 +39,7 @@ use secret_toolkit::{
     utils::{pad_handle_result, pad_query_result},
 };
 
-use secret_toolkit_crypto::{sha_256, Prng};
+use secret_toolkit_crypto::{sha_256, ContractPrng};
 use serde::de::DeserializeOwned;
 use shade_protocol::query_auth::QueryPermit;
 
@@ -1172,13 +1172,15 @@ fn query_rewards<C: CustomQuery>(
 fn query_rewards<C: CustomQuery>(_: QuerierWrapper<C>, _: &Addr, _: &Config) -> StdResult<Rewards> {
     use crate::staking_interface::RewardToken;
 
-    Ok(Rewards { rewards: vec![Reward{
-        token: RewardToken {
-            address: Addr::unchecked("shade_contract_info_address"),
-            code_hash: String::from("shade_contract_info_code_hash"),
-        },
-        amount: Uint128::from(100000000_u128)
-    }] })
+    Ok(Rewards {
+        rewards: vec![Reward {
+            token: RewardToken {
+                address: Addr::unchecked("shade_contract_info_address"),
+                code_hash: String::from("shade_contract_info_code_hash"),
+            },
+            amount: Uint128::from(100000000_u128),
+        }],
+    })
 }
 
 #[cfg(test)]
@@ -1477,7 +1479,7 @@ pub fn new_viewing_key(
     rng_entropy.extend_from_slice(sender.as_bytes());
     rng_entropy.extend_from_slice(entropy);
 
-    let mut rng = Prng::new(seed, &rng_entropy);
+    let mut rng = ContractPrng::new(seed, &rng_entropy);
 
     let rand_slice = rng.rand_bytes();
 
diff --git a/packages/shade_protocol/Cargo.toml b/packages/shade_protocol/Cargo.toml
index 57d957a0..d1a29e11 100644
--- a/packages/shade_protocol/Cargo.toml
+++ b/packages/shade_protocol/Cargo.toml
@@ -130,7 +130,7 @@ schemars = "0.8.16"
 serde = { version = "1.0.193", default-features = false, features = ["derive", "alloc"] }
 thiserror = "1.0.50"
 
-secret-storage-plus = { git = "https://github.com/securesecrets/secret-plus-utils", version = "0.13.4", optional = true }
+secret-storage-plus = { git = "https://github.com/securesecrets/secret-plus-utils", tag = "v0.1.1", optional = true, features = [] }
 
 # Testing
 anyhow = { version = "1", optional = true }
diff --git a/packages/shade_protocol/src/utils/callback.rs b/packages/shade_protocol/src/utils/callback.rs
index 9192bc2a..6c0ebba6 100644
--- a/packages/shade_protocol/src/utils/callback.rs
+++ b/packages/shade_protocol/src/utils/callback.rs
@@ -7,17 +7,8 @@ use crate::multi_test::{App, AppResponse, Contract as MultiContract, Executor};
 use crate::AnyResult;
 use crate::{
     c_std::{
-        to_binary,
-        Addr,
-        Coin,
-        ContractInfo,
-        CosmosMsg,
-        Empty,
-        QuerierWrapper,
-        QueryRequest,
-        StdResult,
-        WasmMsg,
-        WasmQuery,
+        to_binary, Addr, Coin, ContractInfo, CosmosMsg, Empty, QuerierWrapper, QueryRequest,
+        StdResult, WasmMsg, WasmQuery,
     },
     serde::{de::DeserializeOwned, Serialize},
     Contract,