diff --git a/signer/fourbyte/abi_test.go b/signer/fourbyte/abi_test.go
index 314c12735..68c027ece 100644
--- a/signer/fourbyte/abi_test.go
+++ b/signer/fourbyte/abi_test.go
@@ -68,7 +68,7 @@ func TestNewUnpacker(t *testing.T) {
 				[10]byte{49, 50, 51, 52, 53, 54, 55, 56, 57, 48},
 				common.Hex2Bytes("48656c6c6f2c20776f726c6421"),
 			},
-		}, { // https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI#examples
+		}, { // https://docs.soliditylang.org/en/develop/abi-spec.html#examples
 			`[{"type":"function","name":"sam","inputs":[{"type":"bytes"},{"type":"bool"},{"type":"uint256[]"}]}]`,
 			//  "dave", true and [1,2,3]
 			"a5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003",
@@ -124,7 +124,7 @@ func TestCalldataDecoding(t *testing.T) {
 		"42958b5400000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000042",
 		// Too short compareAndApprove
 		"a52c101e00ff0000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000042",
-		// From https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI
+		// From https://docs.soliditylang.org/en/develop/abi-spec.html
 		// contains a bool with illegal values
 		"a5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000001100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003",
 	} {
@@ -135,7 +135,7 @@ func TestCalldataDecoding(t *testing.T) {
 	}
 	// Expected success
 	for i, hexdata := range []string{
-		// From https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI
+		// From https://docs.soliditylang.org/en/develop/abi-spec.html
 		"a5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003",
 		"a52c101e0000000000000000000000000000000000000000000000000000000000000012",
 		"a52c101eFFffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",