diff --git a/.changeset/ethers-v6-connect.md b/.changeset/ethers-v6-connect.md
new file mode 100644
index 000000000..08dcf9562
--- /dev/null
+++ b/.changeset/ethers-v6-connect.md
@@ -0,0 +1,5 @@
+---
+"@typechain/ethers-v6": patch
+---
+
+🐛 fix contract connect type
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesInput.ts b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesInput.ts
index 8d311d0e0..964f3c7ad 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesInput.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesInput.ts
@@ -362,7 +362,7 @@ export interface DataTypesInputInterface extends Interface {
 }
 
 export interface DataTypesInput extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesPure.ts b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesPure.ts
index 26d06f7a2..7b1a3b2f9 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesPure.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesPure.ts
@@ -138,7 +138,7 @@ export interface DataTypesPureInterface extends Interface {
 }
 
 export interface DataTypesPure extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesView.ts b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesView.ts
index 8d42440aa..cfa377a6a 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/DataTypesView.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/DataTypesView.ts
@@ -138,7 +138,7 @@ export interface DataTypesViewInterface extends Interface {
 }
 
 export interface DataTypesView extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Events.ts b/packages/target-ethers-v6-test/types/v0.6.4/Events.ts
index 9a91a3d7c..ffe90da78 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Events.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Events.ts
@@ -201,7 +201,7 @@ export namespace UpdateFrequencySetEvent {
 }
 
 export interface Events extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/A.ts b/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/A.ts
index 4aab55fdb..07aedd282 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/A.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/A.ts
@@ -36,7 +36,7 @@ export namespace CommittedEvent {
 }
 
 export interface A extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/B.ts b/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/B.ts
index 87beae044..6ad85f323 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/B.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Issue428_Reproduction/B.ts
@@ -51,7 +51,7 @@ export namespace Committed_address_array_Event {
 }
 
 export interface B extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Library/Lib.ts b/packages/target-ethers-v6-test/types/v0.6.4/Library/Lib.ts
index 5c9136dcb..81bf8ef33 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Library/Lib.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Library/Lib.ts
@@ -30,7 +30,7 @@ export interface LibInterface extends Interface {
 }
 
 export interface Lib extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/LibraryConsumer.ts b/packages/target-ethers-v6-test/types/v0.6.4/LibraryConsumer.ts
index 5efd51b49..2f58f6e96 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/LibraryConsumer.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/LibraryConsumer.ts
@@ -33,7 +33,7 @@ export interface LibraryConsumerInterface extends Interface {
 }
 
 export interface LibraryConsumer extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Name-Mangling/NAME12mangling.ts b/packages/target-ethers-v6-test/types/v0.6.4/Name-Mangling/NAME12mangling.ts
index 92f013d83..d9469dd78 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Name-Mangling/NAME12mangling.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Name-Mangling/NAME12mangling.ts
@@ -31,7 +31,7 @@ export interface NAME12manglingInterface extends Interface {
 }
 
 export interface NAME12mangling extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Overloads.ts b/packages/target-ethers-v6-test/types/v0.6.4/Overloads.ts
index 7e719b643..806065300 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Overloads.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Overloads.ts
@@ -46,7 +46,7 @@ export interface OverloadsInterface extends Interface {
 }
 
 export interface Overloads extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Payable/Payable.ts b/packages/target-ethers-v6-test/types/v0.6.4/Payable/Payable.ts
index d2d83cf4f..35bc4896c 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Payable/Payable.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Payable/Payable.ts
@@ -45,7 +45,7 @@ export interface PayableInterface extends Interface {
 }
 
 export interface Payable extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.6.4/Payable/PayableFactory.ts b/packages/target-ethers-v6-test/types/v0.6.4/Payable/PayableFactory.ts
index 57e5921bb..446aeedc5 100644
--- a/packages/target-ethers-v6-test/types/v0.6.4/Payable/PayableFactory.ts
+++ b/packages/target-ethers-v6-test/types/v0.6.4/Payable/PayableFactory.ts
@@ -32,7 +32,7 @@ export interface PayableFactoryInterface extends Interface {
 }
 
 export interface PayableFactory extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/ISimpleToken.ts b/packages/target-ethers-v6-test/types/v0.8.9/ISimpleToken.ts
index 1a97488f2..c402ecaec 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/ISimpleToken.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/ISimpleToken.ts
@@ -33,7 +33,7 @@ export interface ISimpleTokenInterface extends Interface {
 }
 
 export interface ISimpleToken extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Issue552_Reproduction.ts b/packages/target-ethers-v6-test/types/v0.8.9/Issue552_Reproduction.ts
index c3d34da05..f56483110 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Issue552_Reproduction.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Issue552_Reproduction.ts
@@ -72,7 +72,7 @@ export interface Issue552_ReproductionInterface extends Interface {
 }
 
 export interface Issue552_Reproduction extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/KingOfTheHill.ts b/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/KingOfTheHill.ts
index 73ac6ddc4..fb5f12f92 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/KingOfTheHill.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/KingOfTheHill.ts
@@ -64,7 +64,7 @@ export namespace HighestBidIncreasedEvent {
 }
 
 export interface KingOfTheHill extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/Withdrawable.ts b/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/Withdrawable.ts
index 65974dfcf..f43a0ce79 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/Withdrawable.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/KingOfTheHill/Withdrawable.ts
@@ -29,7 +29,7 @@ export interface WithdrawableInterface extends Interface {
 }
 
 export interface Withdrawable extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721.ts
index 11da60f71..76c857cd3 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721.ts
@@ -166,7 +166,7 @@ export namespace TransferEvent {
 }
 
 export interface ERC721 extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721Enumerable.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721Enumerable.ts
index 460da25e5..089186eb2 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721Enumerable.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/ERC721Enumerable.ts
@@ -193,7 +193,7 @@ export namespace TransferEvent {
 }
 
 export interface ERC721Enumerable extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721.ts
index df5d3e6da..10768da13 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721.ts
@@ -166,7 +166,7 @@ export namespace TransferEvent {
 }
 
 export interface IERC721 extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Enumerable.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Enumerable.ts
index 8313d2c75..7dcdf7cfd 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Enumerable.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Enumerable.ts
@@ -193,7 +193,7 @@ export namespace TransferEvent {
 }
 
 export interface IERC721Enumerable extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Receiver.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Receiver.ts
index d2ab8bc2c..75ba947e9 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Receiver.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/IERC721Receiver.ts
@@ -36,7 +36,7 @@ export interface IERC721ReceiverInterface extends Interface {
 }
 
 export interface IERC721Receiver extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/Rarity.ts b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/Rarity.ts
index 6adf0b94b..4637092e0 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/Rarity/Rarity.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/Rarity/Rarity.ts
@@ -312,7 +312,7 @@ export namespace summonedEvent {
 }
 
 export interface Rarity extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/SimpleToken.ts b/packages/target-ethers-v6-test/types/v0.8.9/SimpleToken.ts
index 78eb67e08..228e422b4 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/SimpleToken.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/SimpleToken.ts
@@ -33,7 +33,7 @@ export interface SimpleTokenInterface extends Interface {
 }
 
 export interface SimpleToken extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/nested/a/NestedLibrary.ts b/packages/target-ethers-v6-test/types/v0.8.9/nested/a/NestedLibrary.ts
index 042ef3c71..5ad1d23b9 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/nested/a/NestedLibrary.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/nested/a/NestedLibrary.ts
@@ -29,7 +29,7 @@ export interface NestedLibraryInterface extends Interface {
 }
 
 export interface NestedLibrary extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6-test/types/v0.8.9/nested/b/NestedLibrary.ts b/packages/target-ethers-v6-test/types/v0.8.9/nested/b/NestedLibrary.ts
index 042ef3c71..5ad1d23b9 100644
--- a/packages/target-ethers-v6-test/types/v0.8.9/nested/b/NestedLibrary.ts
+++ b/packages/target-ethers-v6-test/types/v0.8.9/nested/b/NestedLibrary.ts
@@ -29,7 +29,7 @@ export interface NestedLibraryInterface extends Interface {
 }
 
 export interface NestedLibrary extends BaseContract {
-  connect(runner?: ContractRunner | null): BaseContract;
+  connect(runner?: ContractRunner | null): this;
   attach(addressOrName: AddressLike): this;
   deployed(): Promise<this>;
 
diff --git a/packages/target-ethers-v6/src/codegen/index.ts b/packages/target-ethers-v6/src/codegen/index.ts
index bb7209f37..9d2f5b614 100644
--- a/packages/target-ethers-v6/src/codegen/index.ts
+++ b/packages/target-ethers-v6/src/codegen/index.ts
@@ -66,7 +66,7 @@ export function codegenContractTypings(contract: Contract, codegenConfig: Codege
 
   export interface ${contract.name} extends BaseContract {
     ${codegenConfig.discriminateTypes ? `contractName: '${contract.name}';\n` : ``}
-    connect(runner?: ContractRunner | null): BaseContract;
+    connect(runner?: ContractRunner | null): this;
     attach(addressOrName: AddressLike): this;
     deployed(): Promise<this>;