diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65d2c8de..565443cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 - [\#112](https://github.com/Finschia/finschia-js/pull/112) change package version from v0.9.0 to v0.10.0-rc1
+- [\#113](https://github.com/Finschia/finschia-js/pull/113) bump up @finschia/finschia v4.0.0-rc4
 
 ### Deprecated
 
diff --git a/package.json b/package.json
index 9b3c6f66..ad685f64 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "@cosmjs/encoding": "^0.31.0",
     "@cosmjs/proto-signing": "^0.31.0",
     "@cosmjs/stargate": "^0.31.0",
-    "@finschia/finschia": "0.10.0-rc1",
+    "@finschia/finschia": "0.10.0-rc2",
     "eslint": "^7.5",
     "karma-chrome-launcher": "^3.1.0",
     "karma-jasmine": "^4.0.1",
diff --git a/packages/finschia/package.json b/packages/finschia/package.json
index 46bd03c4..49271ace 100644
--- a/packages/finschia/package.json
+++ b/packages/finschia/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@finschia/finschia",
-  "version": "0.10.0-rc1",
+  "version": "0.10.0-rc2",
   "description": "Utilities for FINSCHIA v2.0.0",
   "contributors": [
     "zemyblue <zemyblue@users.noreply.github.com>",
@@ -47,7 +47,7 @@
     "@cosmjs/stargate": "^0.31.0",
     "@cosmjs/tendermint-rpc": "^0.31.0",
     "@cosmjs/utils": "^0.31.0",
-    "@finschia/finschia-proto": "4.0.0-rc2",
+    "@finschia/finschia-proto": "4.0.0-rc4",
     "cosmjs-types": "^0.8.0",
     "long": "^4.0.0",
     "pako": "^2.0.2",
diff --git a/packages/finschia/src/finschiaclient.searchtx.spec.ts b/packages/finschia/src/finschiaclient.searchtx.spec.ts
index 19119269..789e5b2e 100644
--- a/packages/finschia/src/finschiaclient.searchtx.spec.ts
+++ b/packages/finschia/src/finschiaclient.searchtx.spec.ts
@@ -76,7 +76,7 @@ async function sendTokens(
   const { accountNumber, sequence } = (await client.getSequence(walletAddress))!;
   const feeAmount = [
     {
-      amount: "2000",
+      amount: "3000",
       denom: "cony",
     },
   ];
diff --git a/packages/finschia/src/finschiaclient.spec.ts b/packages/finschia/src/finschiaclient.spec.ts
index 2ce19006..df6443d1 100644
--- a/packages/finschia/src/finschiaclient.spec.ts
+++ b/packages/finschia/src/finschiaclient.spec.ts
@@ -221,7 +221,7 @@ describe("FinschiaClient", () => {
         },
       };
       const fee: StdFee = {
-        amount: coins(5000, "cony"),
+        amount: coins(13400, "cony"),
         gas: "890000",
       };
 
@@ -358,7 +358,7 @@ describe("FinschiaClient", () => {
             ...defaultSigningClientOptions,
           });
           await client.delegateTokens(faucet.address4, validator.validatorAddress, coin(1234, "stake"), {
-            amount: coins(2000, "cony"),
+            amount: coins(3000, "cony"),
             gas: "200000",
           });
         }
@@ -662,7 +662,7 @@ describe("FinschiaClient", () => {
       const client = await FinschiaClient.connect(simapp.tendermintUrl);
       const minimumGasPrice = await client.queryMinimumGasPrice();
       expect(minimumGasPrice).not.toBeNull();
-      expect(minimumGasPrice).toBe("0.000100000000000000cony");
+      expect(minimumGasPrice).toBe("0.015000000000000000cony,0.015000000000000000stake");
     });
   });
 
@@ -702,7 +702,7 @@ describe("FinschiaClient", () => {
         );
         const memo = "Cross-chain fun";
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(2700, "cony"),
           gas: "180000", // 180k
         };
 
diff --git a/packages/finschia/src/modules/fswap/aminomessages.spec.ts b/packages/finschia/src/modules/fswap/aminomessages.spec.ts
index 5a0b98c4..00f3fb6b 100644
--- a/packages/finschia/src/modules/fswap/aminomessages.spec.ts
+++ b/packages/finschia/src/modules/fswap/aminomessages.spec.ts
@@ -149,6 +149,7 @@ describe("Amino Sign", () => {
   });
 
   it("MsgSwapAll", async () => {
+    pendingWithoutSimapp();
     const [client, tmClient] = await makeClientWithFswap(simapp.tendermintUrl);
     const wallet = await Secp256k1HdWallet.fromMnemonic(faucet.mnemonic, {
       hdPaths: [makeLinkPath(0), makeLinkPath(100)],
diff --git a/packages/finschia/src/modules/fswap/queries.spec.ts b/packages/finschia/src/modules/fswap/queries.spec.ts
index 6a9b8379..665dfe43 100644
--- a/packages/finschia/src/modules/fswap/queries.spec.ts
+++ b/packages/finschia/src/modules/fswap/queries.spec.ts
@@ -123,6 +123,23 @@ describe("FswapExtension", () => {
       tmClient.disconnect();
     });
 
+    it("Swap", async () => {
+      pendingWithoutSimapp();
+      const [client, tmClient] = await makeClientWithFswap(simapp.tendermintUrl);
+
+      const swap = await client.fswap.swap("cony", "pdt");
+      expect(swap).toBeDefined();
+      const expected: Swap = {
+        fromDenom: "cony",
+        toDenom: "pdt",
+        amountCapForToDenom: "1000000000000000000000000000000000000000000000",
+        swapRate: Decimal.fromUserInput("148079656000000", 18).atomics,
+      };
+      expect(swap).toEqual(expected);
+
+      tmClient.disconnect();
+    });
+
     it("TotalSwappableToCoinAmount", async () => {
       pendingWithoutSimapp();
       assert(beforeTotalSwappableToAmount, "Missing beforeTotalSwappableToAmount");
diff --git a/packages/finschia/src/modules/fswap/queries.ts b/packages/finschia/src/modules/fswap/queries.ts
index 2da1e1e0..722f8ef6 100644
--- a/packages/finschia/src/modules/fswap/queries.ts
+++ b/packages/finschia/src/modules/fswap/queries.ts
@@ -5,12 +5,14 @@ import {
   QuerySwapsResponse,
 } from "@finschia/finschia-proto/lbm/fswap/v1/query";
 import { Coin } from "cosmjs-types/cosmos/base/v1beta1/coin";
+import { Swap } from "@finschia/finschia-proto/lbm/fswap/v1/fswap";
 
 export interface FswapExtension {
   readonly fswap: {
     readonly swapped: (fromDenom: string, toDenom: string) => Promise<QuerySwappedResponse>;
     readonly totalSwappableToCoinAmount: (fromDenom: string, toDenom: string) => Promise<Coin | undefined>;
     readonly swaps: (paginationKey?: Uint8Array) => Promise<QuerySwapsResponse>;
+    readonly swap: (fromDenom: string, toDenom: string) => Promise<Swap | undefined>;
   };
 }
 
@@ -36,6 +38,10 @@ export function setupFswapExtension(base: QueryClient): FswapExtension {
       swaps: async (paginationKey?: Uint8Array) => {
         return await queryService.Swaps({ pagination: createPagination(paginationKey) });
       },
+      swap: async (fromDenom: string, toDenom: string) => {
+        const resp = await queryService.Swap({ fromDenom: fromDenom, toDenom: toDenom });
+        return resp.swap;
+      },
     },
   };
 }
diff --git a/packages/finschia/src/signingfinschiaclient.spec.ts b/packages/finschia/src/signingfinschiaclient.spec.ts
index 729a043a..9c758fee 100644
--- a/packages/finschia/src/signingfinschiaclient.spec.ts
+++ b/packages/finschia/src/signingfinschiaclient.spec.ts
@@ -213,7 +213,7 @@ describe("SigningFinschiaClient", () => {
       );
       const memo = "Cross-chain fun";
       const fee = {
-        amount: coins(2000, "cony"),
+        amount: coins(3000, "cony"),
         gas: "180000", // 180k
       };
       const sendAmount = coin(1234, "cony");
@@ -294,7 +294,7 @@ describe("SigningFinschiaClient", () => {
       );
       const memo = "Cross-chain fun";
       const fee = {
-        amount: coins(2000, "cony"),
+        amount: coins(3000, "cony"),
         gas: "180000", // 180k
       };
       const sendAmount = coin(1234, "cony");
@@ -1093,7 +1093,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "180000", // 180k
         };
         const memo = "Use your power wisely";
@@ -1125,7 +1125,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "99000",
         };
         const result = await client.signAndBroadcast(faucet.address0, [msgAny], fee);
@@ -1186,7 +1186,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(5000, "cony"),
           gas: "180000", // 180k
         };
         const memo = "Use your power wisely";
@@ -1200,7 +1200,7 @@ describe("SigningFinschiaClient", () => {
         const tx = decodeTxRaw(searchResult.tx);
         // From ModifyingDirectSecp256k1HdWallet
         expect(tx.body.memo).toEqual("This was modified");
-        expect({ ...tx.authInfo.fee!.amount[0] }).toEqual(coin(3000, "cony"));
+        expect({ ...tx.authInfo.fee!.amount[0] }).toEqual(coin(5000, "cony"));
         expect(tx.authInfo.fee!.gasLimit.toNumber()).toEqual(333333);
 
         client.disconnect();
@@ -1230,7 +1230,7 @@ describe("SigningFinschiaClient", () => {
           value: msgSend,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "ampersand:&,lt:<,gt:>";
@@ -1258,7 +1258,7 @@ describe("SigningFinschiaClient", () => {
           value: msgSend,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your tokens wisely";
@@ -1289,7 +1289,7 @@ describe("SigningFinschiaClient", () => {
           value: msgDelegate,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your tokens wisely";
@@ -1320,7 +1320,7 @@ describe("SigningFinschiaClient", () => {
           value: msgStoreCode,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(22500, "cony"),
           gas: "1500000",
         };
         const memo = "Use your tokens wisely";
@@ -1438,7 +1438,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your power wisely";
@@ -1469,7 +1469,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(5000, "cony"),
           gas: "200000",
         };
         const memo = "Use your power wisely";
@@ -1483,7 +1483,7 @@ describe("SigningFinschiaClient", () => {
         const tx = decodeTxRaw(searchResult.tx);
         // From ModifyingSecp256k1HdWallet
         expect(tx.body.memo).toEqual("This was modified");
-        expect({ ...tx.authInfo.fee!.amount[0] }).toEqual(coin(3000, "cony"));
+        expect({ ...tx.authInfo.fee!.amount[0] }).toEqual(coin(5000, "cony"));
         expect(tx.authInfo.fee!.gasLimit.toNumber()).toEqual(333333);
 
         client.disconnect();
@@ -1513,7 +1513,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "180000", // 180k
         };
         const memo = "Use your power wisely";
@@ -1546,7 +1546,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(5000, "cony"),
           gas: "180000", // 180k
         };
         const memo = "Use your power wisely";
@@ -1556,7 +1556,7 @@ describe("SigningFinschiaClient", () => {
         const authInfo = AuthInfo.decode(signed.authInfoBytes);
         // From ModifyingDirectSecp256k1HdWallet
         expect(body.memo).toEqual("This was modified");
-        expect({ ...authInfo.fee!.amount[0] }).toEqual(coin(3000, "cony"));
+        expect({ ...authInfo.fee!.amount[0] }).toEqual(coin(5000, "cony"));
         expect(authInfo.fee!.gasLimit.toNumber()).toEqual(333333);
 
         // ensure signature is valid
@@ -1588,7 +1588,7 @@ describe("SigningFinschiaClient", () => {
           value: msgSend,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your tokens wisely";
@@ -1622,7 +1622,7 @@ describe("SigningFinschiaClient", () => {
           value: msgDelegate,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your tokens wisely";
@@ -1740,7 +1740,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(3000, "cony"),
           gas: "200000",
         };
         const memo = "Use your power wisely";
@@ -1774,7 +1774,7 @@ describe("SigningFinschiaClient", () => {
           value: msg,
         };
         const fee = {
-          amount: coins(2000, "cony"),
+          amount: coins(5000, "cony"),
           gas: "200000",
         };
         const memo = "Use your power wisely";
@@ -1784,7 +1784,7 @@ describe("SigningFinschiaClient", () => {
         const authInfo = AuthInfo.decode(signed.authInfoBytes);
         // From ModifyingSecp256k1HdWallet
         expect(body.memo).toEqual("This was modified");
-        expect({ ...authInfo.fee!.amount[0] }).toEqual(coin(3000, "cony"));
+        expect({ ...authInfo.fee!.amount[0] }).toEqual(coin(5000, "cony"));
         expect(authInfo.fee!.gasLimit.toNumber()).toEqual(333333);
 
         // ensure signature is valid
diff --git a/packages/finschia/src/signingfinschiaclientv4.spec.ts b/packages/finschia/src/signingfinschiaclientv4.spec.ts
index 8c51244d..a6728bc6 100644
--- a/packages/finschia/src/signingfinschiaclientv4.spec.ts
+++ b/packages/finschia/src/signingfinschiaclientv4.spec.ts
@@ -12,7 +12,7 @@ describe("SigningFinschiaClient", () => {
     gas: "1500000", // 1.5 million
   };
 
-  describe("signAndBridge", () => {
+  describe("swapAndBridge", () => {
     it("works", async () => {
       pendingWithoutSimapp();
       const wallet = await DirectSecp256k1HdWallet.fromMnemonic(faucet.mnemonic, {
diff --git a/packages/finschia/src/testutils.spec.ts b/packages/finschia/src/testutils.spec.ts
index e739080c..df7e1b19 100644
--- a/packages/finschia/src/testutils.spec.ts
+++ b/packages/finschia/src/testutils.spec.ts
@@ -269,7 +269,7 @@ export class ModifyingSecp256k1HdWallet extends Secp256k1HdWallet {
     const modifiedSignDoc = {
       ...signDoc,
       fee: {
-        amount: coins(3000, "cony"),
+        amount: coins(5000, "cony"),
         gas: "333333",
       },
       memo: "This was modified",
@@ -302,7 +302,7 @@ export class ModifyingDirectSecp256k1HdWallet extends DirectSecp256k1HdWallet {
       pubkey: signerInfo.publicKey!,
       sequence: signerInfo.sequence.toNumber(),
     }));
-    const modifiedFeeAmount = coins(3000, "cony");
+    const modifiedFeeAmount = coins(5000, "cony");
     const modifiedGasLimit = 333333;
     const modifiedFeeGranter = undefined;
     const modifiedFeePayer = undefined;
diff --git a/scripts/finschia/env b/scripts/finschia/env
index 6f234cee..178abc2b 100644
--- a/scripts/finschia/env
+++ b/scripts/finschia/env
@@ -1,4 +1,4 @@
 # Choose from https://hub.docker.com/r/finschia/finschianode/tags
 REPOSITORY="finschia/finschianode"
-VERSION="4.0.0-rc3"
+VERSION="4.0.0-rc4"
 CONTAINER_NAME="finschia-app"
diff --git a/scripts/finschia/template/.finschia/config/app.toml b/scripts/finschia/template/.finschia/config/app.toml
index ade65de5..eae30e2e 100644
--- a/scripts/finschia/template/.finschia/config/app.toml
+++ b/scripts/finschia/template/.finschia/config/app.toml
@@ -8,7 +8,7 @@
 # The minimum gas prices a validator is willing to accept for processing a
 # transaction. A transaction's fees must meet the minimum of any denomination
 # specified in this config (e.g. 0.25token1,0.0001token2).
-minimum-gas-prices = "0.0001cony"
+minimum-gas-prices = "0.015cony,0.015stake"
 
 # default: the last 100 states are kept in addition to every 500th state; pruning at 10 block intervals
 # nothing: all historic states will be saved, nothing will be deleted (i.e. archiving node)
diff --git a/scripts/simapp/env b/scripts/simapp/env
index 5a3ee89e..a6959d41 100644
--- a/scripts/simapp/env
+++ b/scripts/simapp/env
@@ -1,4 +1,4 @@
 # Choose from https://hub.docker.com/r/finschia/finschia-simapp/tags
 REPOSITORY="finschia/finschia-simapp"
-VERSION="0.49.0-rc5"
+VERSION="0.49.0-rc6"
 CONTAINER_NAME="finschia-simapp"
diff --git a/scripts/simapp/template/.simapp/config/app.toml b/scripts/simapp/template/.simapp/config/app.toml
index 23548072..292894ba 100644
--- a/scripts/simapp/template/.simapp/config/app.toml
+++ b/scripts/simapp/template/.simapp/config/app.toml
@@ -8,7 +8,7 @@
 # The minimum gas prices a validator is willing to accept for processing a
 # transaction. A transaction's fees must meet the minimum of any denomination
 # specified in this config (e.g. 0.25token1,0.0001token2).
-minimum-gas-prices = "0.0001cony"
+minimum-gas-prices = "0.015cony,0.015stake"
 
 # default: the last 100 states are kept in addition to every 500th state; pruning at 10 block intervals
 # nothing: all historic states will be saved, nothing will be deleted (i.e. archiving node)
diff --git a/scripts/with-ibc/docker-compose.yaml b/scripts/with-ibc/docker-compose.yaml
index 47228a7b..e9fdbd3a 100644
--- a/scripts/with-ibc/docker-compose.yaml
+++ b/scripts/with-ibc/docker-compose.yaml
@@ -2,7 +2,7 @@ version: "3"
 
 services:
   finschia-app:
-    image: "finschia/finschianode:4.0.0-rc3"
+    image: "finschia/finschianode:4.0.0-rc4"
     ports:
       - "26658:26657"
       - "1317:1317"
@@ -15,7 +15,7 @@ services:
       - host.docker.internal:host-gateway
 
   finschia2-app:
-    image: "finschia/finschianode:4.0.0-rc3"
+    image: "finschia/finschianode:4.0.0-rc4"
     ports:
       - "26558:26657"
       - "1318:1317"
diff --git a/scripts/with-ibc/finschia/env b/scripts/with-ibc/finschia/env
index 6f234cee..178abc2b 100644
--- a/scripts/with-ibc/finschia/env
+++ b/scripts/with-ibc/finschia/env
@@ -1,4 +1,4 @@
 # Choose from https://hub.docker.com/r/finschia/finschianode/tags
 REPOSITORY="finschia/finschianode"
-VERSION="4.0.0-rc3"
+VERSION="4.0.0-rc4"
 CONTAINER_NAME="finschia-app"
diff --git a/scripts/with-ibc/finschia/template/.finschia/config/app.toml b/scripts/with-ibc/finschia/template/.finschia/config/app.toml
index 9a583c91..eae30e2e 100644
--- a/scripts/with-ibc/finschia/template/.finschia/config/app.toml
+++ b/scripts/with-ibc/finschia/template/.finschia/config/app.toml
@@ -7,8 +7,8 @@
 
 # The minimum gas prices a validator is willing to accept for processing a
 # transaction. A transaction's fees must meet the minimum of any denomination
-# specified in this config (e.g. 0.25token1;0.0001token2).
-minimum-gas-prices = "0.0001cony"
+# specified in this config (e.g. 0.25token1,0.0001token2).
+minimum-gas-prices = "0.015cony,0.015stake"
 
 # default: the last 100 states are kept in addition to every 500th state; pruning at 10 block intervals
 # nothing: all historic states will be saved, nothing will be deleted (i.e. archiving node)
diff --git a/scripts/with-ibc/finschia2/env b/scripts/with-ibc/finschia2/env
index c5f8f406..d9894413 100644
--- a/scripts/with-ibc/finschia2/env
+++ b/scripts/with-ibc/finschia2/env
@@ -1,4 +1,4 @@
 # Choose from https://hub.docker.com/r/finschia/finschianode/tags
 REPOSITORY="finschia/finschianode"
-VERSION="4.0.0-rc3"
+VERSION="4.0.0-rc4"
 CONTAINER_NAME="finschia2-app"
diff --git a/scripts/with-ibc/relayer/template/configs/chains/finschia-0.json b/scripts/with-ibc/relayer/template/configs/chains/finschia-0.json
index fb8c470f..58fc8576 100644
--- a/scripts/with-ibc/relayer/template/configs/chains/finschia-0.json
+++ b/scripts/with-ibc/relayer/template/configs/chains/finschia-0.json
@@ -8,7 +8,7 @@
     "account-prefix": "link",
     "keyring-backend": "test",
     "gas-adjustment": 1.5,
-    "gas-prices": "0.001cony",
+    "gas-prices": "0.015cony",
     "debug": true,
     "timeout": "10s",
     "output-format": "json",
diff --git a/yarn.lock b/yarn.lock
index bfeb21f8..17d46c21 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -390,10 +390,10 @@
     minimatch "^3.0.4"
     strip-json-comments "^3.1.1"
 
-"@finschia/finschia-proto@4.0.0-rc2":
-  version "4.0.0-rc2"
-  resolved "https://registry.yarnpkg.com/@finschia/finschia-proto/-/finschia-proto-4.0.0-rc2.tgz#c095829e6711d92eca9bab6b35ce6719f42b5552"
-  integrity sha512-wjN9H/Ddz5vriQjeW6NGGMnSrTFFkIRZr0JnG2yVErCcda4AgazIiIwfJwMX2wnwjuJr+wUVyx1skJ6m/ZD75g==
+"@finschia/finschia-proto@4.0.0-rc4":
+  version "4.0.0-rc4"
+  resolved "https://registry.yarnpkg.com/@finschia/finschia-proto/-/finschia-proto-4.0.0-rc4.tgz#6fa689714787f5673901fa5aa2ce52d5395e60b8"
+  integrity sha512-S69IyMit7nyhVijTki5o9vIyHchZdO4JSSTfrES/vMRRHxX/esTSkB8IjxNyDWTTmXGIBaCDZmFvS/qFeoRNVw==
   dependencies:
     long "^4.0.0"
     protobufjs "~6.11.2"