diff --git a/CHANGELOG.md b/CHANGELOG.md
index d79a9275..7e61f2ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,17 @@ All notable changes to this project will be documented in this file. Dates are d
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+#### [v3.0.1-next.0](https://github.com/oceanprotocol/ocean.js/compare/v3.0.0...v3.0.1-next.0)
+
+- Merge 04deabccd3ffbc8d3620e42a8b1bc4a2d5019e54 into 543f71f7cda1b3d0099cc26975d34b89bead7452 [`c33663c`](https://github.com/oceanprotocol/ocean.js/commit/c33663cfdbf501c407d3e1e17f56b17761f9e556)
+- set min gas fee 30 gwei on priority fees for polygon and  mumbai as well [`04deabc`](https://github.com/oceanprotocol/ocean.js/commit/04deabccd3ffbc8d3620e42a8b1bc4a2d5019e54)
+
 #### [v3.0.0](https://github.com/oceanprotocol/ocean.js/compare/v3.0.0-next.5...v3.0.0)
 
+> 29 May 2023
+
 - Features/ethers [`#1696`](https://github.com/oceanprotocol/ocean.js/pull/1696)
+- Release 3.0.0 [`543f71f`](https://github.com/oceanprotocol/ocean.js/commit/543f71f7cda1b3d0099cc26975d34b89bead7452)
 
 #### [v3.0.0-next.5](https://github.com/oceanprotocol/ocean.js/compare/v3.0.0-next.4...v3.0.0-next.5)
 
diff --git a/package-lock.json b/package-lock.json
index 2c9c5570..90734e20 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@oceanprotocol/lib",
-  "version": "3.0.0",
+  "version": "3.0.1-next.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@oceanprotocol/lib",
-      "version": "3.0.0",
+      "version": "3.0.1-next.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@oceanprotocol/contracts": "^1.1.8",
diff --git a/package.json b/package.json
index 5d34d990..fe2e582b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@oceanprotocol/lib",
   "source": "./src/index.ts",
-  "version": "3.0.0",
+  "version": "3.0.1-next.0",
   "description": "JavaScript client library for Ocean Protocol",
   "main": "./dist/lib.js",
   "umd:main": "dist/lib.umd.js",
diff --git a/src/utils/ContractUtils.ts b/src/utils/ContractUtils.ts
index bd5d738e..e9312486 100644
--- a/src/utils/ContractUtils.ts
+++ b/src/utils/ContractUtils.ts
@@ -130,7 +130,11 @@ export async function sendTx(
       ).toString()
     }
     overrides = {
-      maxPriorityFeePerGas: aggressiveFeePriorityFeePerGas,
+      maxPriorityFeePerGas:
+        (chainId === MUMBAI_NETWORK_ID || chainId === POLYGON_NETWORK_ID) &&
+        Number(aggressiveFeePriorityFeePerGas) < MIN_GAS_FEE_POLYGON
+          ? MIN_GAS_FEE_POLYGON
+          : Number(aggressiveFeePriorityFeePerGas),
       maxFeePerGas:
         (chainId === MUMBAI_NETWORK_ID || chainId === POLYGON_NETWORK_ID) &&
         Number(aggressiveFeePerGas) < MIN_GAS_FEE_POLYGON