diff --git a/src/entities/chain/model.ts b/src/entities/chain/model.ts
index 4f7caa1..b6a7808 100644
--- a/src/entities/chain/model.ts
+++ b/src/entities/chain/model.ts
@@ -6,6 +6,7 @@ interface ChainState {
   setChains: (chains: Chain[]) => void;
   addChain: (chain: Chain) => void;
   getChain: (id: string) => Chain | null;
+  updateChain: (chain: Chain) => void;
 }
 
 export const useChainState = create<ChainState>((set, get) => ({
@@ -26,4 +27,20 @@ export const useChainState = create<ChainState>((set, get) => ({
 
     return chain;
   },
+
+  updateChain: (chain) =>
+    set((state) => {
+      const chains = state.chains;
+      if (!chains) return { chains: [chain] };
+      const chainIndex = chains.findIndex((value) => value._id === chain._id);
+
+      if (!chainIndex) return { chains: [...chains, chain] };
+      return {
+        chains: [
+          ...chains.slice(0, chainIndex),
+          chain,
+          ...chains.slice(chainIndex + 1),
+        ],
+      };
+    }),
 }));