diff --git a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
index bd4711baf1..db4f02b890 100644
--- a/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
+++ b/packages/utils/src/abi_encoder/abstract_data_types/data_type.ts
@@ -47,7 +47,8 @@ export abstract class DataType {
         const hasSelector = !_.isUndefined(selector);
         const rawCalldata = new RawCalldata(calldata, hasSelector);
         const rules_ = _.isUndefined(rules) ? constants.DEFAULT_DECODING_RULES : rules;
-        const value = rawCalldata.getSizeInBytes() > 0 ? this.generateValue(rawCalldata, rules_) : this.getDefaultValue(rules_);
+        const value =
+            rawCalldata.getSizeInBytes() > 0 ? this.generateValue(rawCalldata, rules_) : this.getDefaultValue(rules_);
         return value;
     }
 
diff --git a/packages/utils/src/abi_encoder/evm_data_types/bool.ts b/packages/utils/src/abi_encoder/evm_data_types/bool.ts
index 54b516bb02..24887c509c 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/bool.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/bool.ts
@@ -10,7 +10,7 @@ import { constants } from '../utils/constants';
 
 export class BoolDataType extends AbstractBlobDataType {
     private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = true;
-    private static readonly _DEFAULT_VALUE: boolean  =false;
+    private static readonly _DEFAULT_VALUE: boolean = false;
 
     public static matchType(type: string): boolean {
         return type === SolidityTypes.Bool;
diff --git a/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts b/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts
index 0dd40fed2f..7a49a84b4d 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/dynamic_bytes.ts
@@ -9,7 +9,7 @@ import { constants } from '../utils/constants';
 
 export class DynamicBytesDataType extends AbstractBlobDataType {
     private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = false;
-    private static readonly _DEFAULT_VALUE = "0x";
+    private static readonly _DEFAULT_VALUE = '0x';
 
     public static matchType(type: string): boolean {
         return type === SolidityTypes.Bytes;
diff --git a/packages/utils/src/abi_encoder/evm_data_types/string.ts b/packages/utils/src/abi_encoder/evm_data_types/string.ts
index 886f398f91..f54d739b45 100644
--- a/packages/utils/src/abi_encoder/evm_data_types/string.ts
+++ b/packages/utils/src/abi_encoder/evm_data_types/string.ts
@@ -9,7 +9,7 @@ import { constants } from '../utils/constants';
 
 export class StringDataType extends AbstractBlobDataType {
     private static readonly _SIZE_KNOWN_AT_COMPILE_TIME: boolean = false;
-    private static readonly _DEFAULT_VALUE = "";
+    private static readonly _DEFAULT_VALUE = '';
 
     public static matchType(type: string): boolean {
         return type === SolidityTypes.String;
diff --git a/packages/utils/src/abi_encoder/utils/constants.ts b/packages/utils/src/abi_encoder/utils/constants.ts
index db190c3a6a..b45b5b8e8b 100644
--- a/packages/utils/src/abi_encoder/utils/constants.ts
+++ b/packages/utils/src/abi_encoder/utils/constants.ts
@@ -1,6 +1,7 @@
-import { DecodingRules, EncodingRules } from './rules';
 import * as ethUtil from 'ethereumjs-util';
 
+import { DecodingRules, EncodingRules } from './rules';
+
 export const constants = {
     EVM_WORD_WIDTH_IN_BYTES: 32,
     EVM_WORD_WIDTH_IN_BITS: 256,
@@ -19,4 +20,4 @@ export const constants = {
     EMPTY_EVM_WORD_BUFFER: ethUtil.toBuffer('0x0000000000000000000000000000000000000000000000000000000000000000'),
     NUMBER_OF_BYTES_IN_UINT8: 8,
     NUMBER_OF_BYTES_IN_INT8: 8,
-}
+};