diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..7a4cc95
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+multicaller.egg-info
+build
+venv
+dist
diff --git a/multicaller/multicaller.py b/multicaller/multicaller.py
index c37ef84..b8bcf5f 100644
--- a/multicaller/multicaller.py
+++ b/multicaller/multicaller.py
@@ -39,7 +39,7 @@ def loadMultiCall(self):
 		abiPath = os.path.join(path);
 		f = pkgutil.get_data(__name__, abiPath).decode();
 		abi = json.loads(f);
-		multiCall = self.web3.eth.contract(self.web3.toChecksumAddress(multicallAddress), abi=abi);
+		multiCall = self.web3.eth.contract(self.web3.to_checksum_address(multicallAddress), abi=abi);
 		return(multiCall);
 
 	def getMultiCallAddress(self):
@@ -48,7 +48,7 @@ def getMultiCallAddress(self):
 	@cache
 	def getContract(self, address, abiString):
 		abi = self.stringToList(abiString);
-		contract = self.web3.eth.contract(self.web3.toChecksumAddress(address), abi=abi);
+		contract = self.web3.eth.contract(self.web3.to_checksum_address(address), abi=abi);
 		return(contract);
 
 	@cache
@@ -68,7 +68,7 @@ def decodeData(self, decoder, rawOutput):
 		if rawOutput == b'':
 			return None;
 
-		return(self.web3.codec.decode_abi(self.stringToList(decoder), rawOutput));
+		return(self.web3.codec.decode(self.stringToList(decoder), rawOutput));
 
 	def iterArgs(self, args):
 		isTuple = False;
@@ -109,9 +109,9 @@ def addCall(self, address, abi, functionName, args=None):
 
 		payload = None;
 		if self.allowFailure:
-			payload = (self.web3.toChecksumAddress(address), True, callData);
+			payload = (self.web3.to_checksum_address(address), True, callData);
 		else:
-			payload = (self.web3.toChecksumAddress(address), callData);
+			payload = (self.web3.to_checksum_address(address), callData);
 
 		self.payload.append(payload);
 		self.decoders.append(get_abi_output_types(fn.abi));
diff --git a/samples/sample.py b/samples/sample.py
index 46f83a3..72a2a21 100644
--- a/samples/sample.py
+++ b/samples/sample.py
@@ -19,7 +19,7 @@
 					"0x263534a4fe3cb249df46810718b7b612a30ebbff"
 				];
 
-balancerVault = web3.toChecksumAddress("0xba12222222228d8ba445958a75a0704d566bf2c8");
+balancerVault = web3.to_checksum_address("0xba12222222228d8ba445958a75a0704d566bf2c8");
 
 for tokenAddress in tokenAddresses:
 	mc.addCall(tokenAddress, erc20Abi, 'symbol');
diff --git a/setup.cfg b/setup.cfg
index 10c7681..59dddef 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,4 +19,4 @@ classifiers =
 packages = find:
 include_package_data = true
 install_requires =
-	web3==5.24.0
+	web3>=6.0,<=7.0