diff --git a/contracts/main/voice/src/contract.rs b/contracts/main/voice/src/contract.rs
index ea90146..15996fb 100644
--- a/contracts/main/voice/src/contract.rs
+++ b/contracts/main/voice/src/contract.rs
@@ -41,6 +41,9 @@ pub fn instantiate(
     if contract_addr_len == 0 {
         return Err(ContractError::ContractAddrLenCantBeZero);
     }
+    if contract_addr_len > 32 {
+        return Err(ContractError::ContractAddrLenCantBeGreaterThan32);
+    }
 
     PROXY_CODE_ID.save(deps.storage, &msg.proxy_code_id.u64())?;
     BLOCK_MAX_GAS.save(deps.storage, &msg.block_max_gas.u64())?;
@@ -222,6 +225,9 @@ pub fn migrate(deps: DepsMut, _env: Env, msg: MigrateMsg) -> Result<Response, Co
             if contract_addr_len == 0 {
                 return Err(ContractError::ContractAddrLenCantBeZero);
             }
+            if contract_addr_len > 32 {
+                return Err(ContractError::ContractAddrLenCantBeGreaterThan32);
+            }
 
             // update the proxy code ID, block max gas, and contract addr len
             PROXY_CODE_ID.save(deps.storage, &proxy_code_id.u64())?;
diff --git a/contracts/main/voice/src/error.rs b/contracts/main/voice/src/error.rs
index 6e65290..920501a 100644
--- a/contracts/main/voice/src/error.rs
+++ b/contracts/main/voice/src/error.rs
@@ -27,4 +27,7 @@ pub enum ContractError {
 
     #[error("Contract address length can't be zero")]
     ContractAddrLenCantBeZero,
+
+    #[error("Contract address length can't be greater than 32")]
+    ContractAddrLenCantBeGreaterThan32,
 }
diff --git a/contracts/main/voice/src/suite_tests/suite.rs b/contracts/main/voice/src/suite_tests/suite.rs
index c899d7f..f311d55 100644
--- a/contracts/main/voice/src/suite_tests/suite.rs
+++ b/contracts/main/voice/src/suite_tests/suite.rs
@@ -73,6 +73,11 @@ impl SuiteBuilder {
         self.instantiate.proxy_code_id = code_id;
         self
     }
+    
+    pub fn with_contract_addr_len(mut self, len: Option<u8>) -> Self {
+        self.instantiate.contract_addr_len = len;
+        self
+    }
 }
 
 impl Suite {
diff --git a/contracts/main/voice/src/suite_tests/tests.rs b/contracts/main/voice/src/suite_tests/tests.rs
index df2e276..68d9e95 100644
--- a/contracts/main/voice/src/suite_tests/tests.rs
+++ b/contracts/main/voice/src/suite_tests/tests.rs
@@ -79,6 +79,22 @@ fn test_gas_validation() {
         .build();
 }
 
+#[test]
+#[should_panic]
+fn test_contract_addr_len_min_validation() {
+    SuiteBuilder::default()
+        .with_contract_addr_len(Some(0))
+        .build();
+}
+
+#[test]
+#[should_panic]
+fn test_contract_addr_len_max_validation() {
+    SuiteBuilder::default()
+        .with_contract_addr_len(Some(33))
+        .build();
+}
+
 #[test]
 fn test_migrate_validation() {
     let mut suite = SuiteBuilder::default().build();
@@ -98,4 +114,20 @@ fn test_migrate_validation() {
         .unwrap();
 
     assert_eq!(err, ContractError::GasLimitsMismatch);
+
+    let err = suite
+        .update(Addr::unchecked(CREATOR_ADDR), 1, 110_000, 0)
+        .unwrap_err()
+        .downcast::<ContractError>()
+        .unwrap();
+
+    assert_eq!(err, ContractError::ContractAddrLenCantBeZero);
+
+    let err = suite
+        .update(Addr::unchecked(CREATOR_ADDR), 1, 110_000, 33)
+        .unwrap_err()
+        .downcast::<ContractError>()
+        .unwrap();
+
+    assert_eq!(err, ContractError::ContractAddrLenCantBeGreaterThan32);
 }