diff --git a/core/src/state/state_storage.rs b/core/src/state/state_storage.rs
index e7eb4f03..50835357 100644
--- a/core/src/state/state_storage.rs
+++ b/core/src/state/state_storage.rs
@@ -153,14 +153,16 @@ impl StateStorage {
         contract_addr: &TreeValue,
         code_hash: &Vec<u8>,
     ) -> Result<(), StateError> {
-        let mut batch = WriteBatch::default();
-        let cf = self
-            .db
-            .cf_sequencer_handle(SequencerColumnFamily::ContractMap);
-        let code_key = tree_key_to_u8_arr(contract_addr);
-        batch.put_cf(cf, &code_key, code_hash);
-
-        self.db.write(batch).map_err(StateError::StorageIoError)
+        // todo to be deleted
+        // let mut batch = WriteBatch::default();
+        // let cf = self
+        //     .db
+        //     .cf_sequencer_handle(SequencerColumnFamily::ContractMap);
+        // let code_key = tree_key_to_u8_arr(contract_addr);
+        // batch.put_cf(cf, &code_key, code_hash);
+
+        // self.db.write(batch).map_err(StateError::StorageIoError)
+        Ok(())
     }
 
     pub fn get_contract_map(&self, contract_addr: &TreeValue) -> Result<Vec<u8>, StateError> {
diff --git a/core/src/storage/db.rs b/core/src/storage/db.rs
index 50239f96..806bdd22 100644
--- a/core/src/storage/db.rs
+++ b/core/src/storage/db.rs
@@ -39,7 +39,6 @@ pub enum StateKeeperColumnFamily {
     Contracts,
     Prophets,
     Debugs,
-    // ContractMap,
     FactoryDeps,
 }
 
@@ -48,7 +47,6 @@ pub enum SequencerColumnFamily {
     State,
     Contracts,
     FactoryDeps,
-    ContractMap,
 }
 
 impl MerkleTreeColumnFamily {
@@ -72,12 +70,7 @@ impl StateKeeperColumnFamily {
 
 impl SequencerColumnFamily {
     fn all() -> &'static [Self] {
-        &[
-            Self::State,
-            Self::Contracts,
-            Self::FactoryDeps,
-            Self::ContractMap,
-        ]
+        &[Self::State, Self::Contracts, Self::FactoryDeps]
     }
 }
 
@@ -110,7 +103,6 @@ impl std::fmt::Display for SequencerColumnFamily {
             Self::State => "state",
             Self::Contracts => "contracts",
             Self::FactoryDeps => "factory_deps",
-            Self::ContractMap => "contract_map",
         };
         write!(formatter, "{}", value)
     }