diff --git a/CHANGELOG.md b/CHANGELOG.md
index a61dee085..0e32bbdf8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # backend
 
+## 2.1.6
+
+### Patch Changes
+
+-   4d2a7a4: change default swap protocol fee for v3
+
 ## 2.1.5
 
 ### Patch Changes
diff --git a/config/arbitrum.ts b/config/arbitrum.ts
index 446d96d5b..1a897844d 100644
--- a/config/arbitrum.ts
+++ b/config/arbitrum.ts
@@ -66,7 +66,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xa731c23d7c95436baaae9d52782f966e1ed07cc8',
             routerAddress: '0x0f08eef2c785aa5e7539684af04755dec1347b7c',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/avalanche.ts b/config/avalanche.ts
index 62d7716c6..c1a6193a2 100644
--- a/config/avalanche.ts
+++ b/config/avalanche.ts
@@ -66,7 +66,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xa731c23d7c95436baaae9d52782f966e1ed07cc8',
             routerAddress: '0xf39ca6ede9bf7820a952b52f3c94af526bab9015',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/base.ts b/config/base.ts
index 52e414ee3..f0d05475a 100644
--- a/config/base.ts
+++ b/config/base.ts
@@ -71,7 +71,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xa731c23d7c95436baaae9d52782f966e1ed07cc8',
             routerAddress: '0x76578ecf9a141296ec657847fb45b0585bcda3a6',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/gnosis.ts b/config/gnosis.ts
index 9f02e612a..22a25cec2 100644
--- a/config/gnosis.ts
+++ b/config/gnosis.ts
@@ -65,7 +65,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xa731c23d7c95436baaae9d52782f966e1ed07cc8',
             routerAddress: '0x84813aa3e079a665c0b80f944427ee83cba63617',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/hyperevm.ts b/config/hyperevm.ts
index 28ef4fc56..01765430b 100644
--- a/config/hyperevm.ts
+++ b/config/hyperevm.ts
@@ -53,7 +53,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xcacc7e1efeea8bb3af6d5720d12c1876aa6ee76b',
             routerAddress: '0xa8920455934da4d853faac1f94fe7bef72943ef1',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/mainnet.ts b/config/mainnet.ts
index ea32288fd..5d9ac2751 100644
--- a/config/mainnet.ts
+++ b/config/mainnet.ts
@@ -75,7 +75,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xa731c23d7c95436baaae9d52782f966e1ed07cc8',
             routerAddress: '0x5c6fb490bdfd3246eb0bb062c168decaf4bd9fdd',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/monad.ts b/config/monad.ts
index 724200440..1eab5fabd 100644
--- a/config/monad.ts
+++ b/config/monad.ts
@@ -50,7 +50,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xcacc7e1efeea8bb3af6d5720d12c1876aa6ee76b',
             routerAddress: '0x9da18982a33fd0c7051b19f0d7c76f2d5e7e017c',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/optimism.ts b/config/optimism.ts
index 05e908b3b..7977bf2a2 100644
--- a/config/optimism.ts
+++ b/config/optimism.ts
@@ -69,7 +69,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xcacc7e1efeea8bb3af6d5720d12c1876aa6ee76b',
             routerAddress: '0xe2fa4e1d17725e72dcdafe943ecf45df4b9e285b',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/plasma.ts b/config/plasma.ts
index 587254091..056b8ef64 100644
--- a/config/plasma.ts
+++ b/config/plasma.ts
@@ -51,7 +51,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xcacc7e1efeea8bb3af6d5720d12c1876aa6ee76b',
             routerAddress: '0x9da18982a33fd0c7051b19f0d7c76f2d5e7e017c',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/config/xlayer.ts b/config/xlayer.ts
index 29d2c7367..e434abadd 100644
--- a/config/xlayer.ts
+++ b/config/xlayer.ts
@@ -51,7 +51,7 @@ export default <NetworkData>{
             vaultAddress: '0xba1333333333a1ba1108e8412f11850a5c319ba9',
             protocolFeeController: '0xcacc7e1efeea8bb3af6d5720d12c1876aa6ee76b',
             routerAddress: '0xc3ccace87f6d3a81724075adcb5ddd85a8a1bb68',
-            defaultSwapFeePercentage: '0.5',
+            defaultSwapFeePercentage: '0.25',
             defaultYieldFeePercentage: '0.1',
         },
     },
diff --git a/package.json b/package.json
index 0fd01710f..f6e5bf49c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "backend",
-    "version": "2.1.5",
+    "version": "2.1.6",
     "description": "Backend service for Beethoven X and Balancer",
     "repository": "https://github.com/balancer/backend",
     "author": "Beethoven X",