diff --git a/build.gradle b/build.gradle
index 428bec5..b5626ed 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ mainClassName = 'org.web3j.console.Web3j'
 applicationName = 'web3j'
 
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     picocli = '4.6.0'
     slf4jVersion = '1.7.30'
     junitVersion = '5.8.2'
diff --git a/src/main/java/org/web3j/console/project/utils/ProjectUtils.java b/src/main/java/org/web3j/console/project/utils/ProjectUtils.java
index 4cad3b5..be0d190 100644
--- a/src/main/java/org/web3j/console/project/utils/ProjectUtils.java
+++ b/src/main/java/org/web3j/console/project/utils/ProjectUtils.java
@@ -167,6 +167,7 @@ public static Boolean isSmartContract(File file) {
      *
      * @param directory directory where to search for Solidity smart contracts
      * @return List of contracts paths
+     * @throws IOException if path is not available
      */
     public static List<Path> findSolidityContracts(Path directory) throws IOException {
         return Files.walk(directory)
diff --git a/src/main/resources/project/build.gradle.template b/src/main/resources/project/build.gradle.template
index f0e6626..fa3eec7 100644
--- a/src/main/resources/project/build.gradle.template
+++ b/src/main/resources/project/build.gradle.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 
@@ -14,7 +14,10 @@ sourceCompatibility = 1.8
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -22,15 +25,21 @@ web3j {
     excludedContracts = ['Mortal']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/build.gradleGenerateOpenApi.template b/src/main/resources/project/build.gradleGenerateOpenApi.template
index a8c2aef..ce2d3ab 100644
--- a/src/main/resources/project/build.gradleGenerateOpenApi.template
+++ b/src/main/resources/project/build.gradleGenerateOpenApi.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
 }
 
 group '<package_name>'
diff --git a/src/main/resources/project/build.gradleImport.template b/src/main/resources/project/build.gradleImport.template
index b3482b2..16e5220 100644
--- a/src/main/resources/project/build.gradleImport.template
+++ b/src/main/resources/project/build.gradleImport.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 
@@ -21,15 +21,21 @@ web3j {
     generatedPackageName = '<package_name>.generated.contracts'
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/build.gradleImportJava11.template b/src/main/resources/project/build.gradleImportJava11.template
index 58075e8..4385af6 100644
--- a/src/main/resources/project/build.gradleImportJava11.template
+++ b/src/main/resources/project/build.gradleImportJava11.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,22 +13,31 @@ sourceCompatibility = 11
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
     generatedPackageName = '<package_name>.generated.contracts'
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/build.gradleImportOpenApi.template b/src/main/resources/project/build.gradleImportOpenApi.template
index 80c3c56..b4eda2b 100644
--- a/src/main/resources/project/build.gradleImportOpenApi.template
+++ b/src/main/resources/project/build.gradleImportOpenApi.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
 }
 
 group '<package_name>'
diff --git a/src/main/resources/project/build.gradleJarOpenApi.template b/src/main/resources/project/build.gradleJarOpenApi.template
index 12d43b6..60118e4 100644
--- a/src/main/resources/project/build.gradleJarOpenApi.template
+++ b/src/main/resources/project/build.gradleJarOpenApi.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
   id "com.github.johnrengelman.shadow" version "5.2.0"
 }
 
diff --git a/src/main/resources/project/build.gradleJava11.template b/src/main/resources/project/build.gradleJava11.template
index cd011e8..325d7e5 100644
--- a/src/main/resources/project/build.gradleJava11.template
+++ b/src/main/resources/project/build.gradleJava11.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,7 +13,10 @@ sourceCompatibility = 11
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -21,15 +24,21 @@ web3j {
     excludedContracts = ['Mortal']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation("org.web3j:web3j-unit:$web3jVersion")
     implementation("org.web3j:web3j-evm:$web3jVersion")
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/build.gradleOpenApi.template b/src/main/resources/project/build.gradleOpenApi.template
index 3b4f137..3ebc4ea 100644
--- a/src/main/resources/project/build.gradleOpenApi.template
+++ b/src/main/resources/project/build.gradleOpenApi.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
 }
 
 group '<package_name>'
diff --git a/src/main/resources/project/erc20/build.gradleErc20.template b/src/main/resources/project/erc20/build.gradleErc20.template
index 93718af..50b5c2a 100644
--- a/src/main/resources/project/erc20/build.gradleErc20.template
+++ b/src/main/resources/project/erc20/build.gradleErc20.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,7 +13,10 @@ sourceCompatibility = 1.8
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -21,15 +24,21 @@ web3j {
     includedContracts = ['ERC20Token']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/erc20/build.gradleErc20Java11.template b/src/main/resources/project/erc20/build.gradleErc20Java11.template
index e924c28..c4e816d 100644
--- a/src/main/resources/project/erc20/build.gradleErc20Java11.template
+++ b/src/main/resources/project/erc20/build.gradleErc20Java11.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,7 +13,10 @@ sourceCompatibility = 11
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -21,15 +24,21 @@ web3j {
     includedContracts = ['ERC20Token']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/erc20/build.gradleOpenApiErc20.template b/src/main/resources/project/erc20/build.gradleOpenApiErc20.template
index d0e792c..ed59bd3 100644
--- a/src/main/resources/project/erc20/build.gradleOpenApiErc20.template
+++ b/src/main/resources/project/erc20/build.gradleOpenApiErc20.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
 }
 
 group '<package_name>'
diff --git a/src/main/resources/project/erc777/build.gradleErc777.template b/src/main/resources/project/erc777/build.gradleErc777.template
index 4d3b94f..eb6457f 100644
--- a/src/main/resources/project/erc777/build.gradleErc777.template
+++ b/src/main/resources/project/erc777/build.gradleErc777.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,7 +13,10 @@ sourceCompatibility = 1.8
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -21,15 +24,21 @@ web3j {
     includedContracts = ['ERC777Token']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
     logbackVersion = '1.2.3'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
     implementation "org.web3j:core:$web3jVersion",
             "ch.qos.logback:logback-core:$logbackVersion",
-            "ch.qos.logback:logback-classic:$logbackVersion"
+            "ch.qos.logback:logback-classic:$logbackVersion",
+            "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/erc777/build.gradleErc777Java11.template b/src/main/resources/project/erc777/build.gradleErc777Java11.template
index 812010b..3d6d5a1 100644
--- a/src/main/resources/project/erc777/build.gradleErc777Java11.template
+++ b/src/main/resources/project/erc777/build.gradleErc777Java11.template
@@ -3,7 +3,7 @@ plugins {
     id 'org.jetbrains.kotlin.jvm' version '1.3.61'
     id 'application'
     id "com.github.johnrengelman.shadow" version "5.2.0"
-    id 'org.web3j' version '4.8.4'
+    id 'org.web3j' version '4.9.4'
 }
 
 group '<package_name>'
@@ -13,7 +13,10 @@ sourceCompatibility = 11
 
 repositories {
     mavenCentral()
-    jcenter()
+    maven { url "https://hyperledger.jfrog.io/hyperledger/besu-maven" }
+    maven { url "https://artifacts.consensys.net/public/maven/maven/" }
+    maven { url "https://splunk.jfrog.io/splunk/ext-releases-local" }
+    maven { url "https://dl.cloudsmith.io/public/consensys/quorum-mainnet-launcher/maven/"}
 }
 
 web3j {
@@ -21,11 +24,17 @@ web3j {
     includedContracts = ['ERC777Token']
 }
 
+node {
+    nodeProjectDir.set(file("$projectDir"))
+}
+
 ext {
-    web3jVersion = '4.8.4'
+    web3jVersion = '4.9.4'
+    klaxonVersion = '5.5'
 }
 
 dependencies {
+    implementation "com.beust:klaxon:$klaxonVersion"
     implementation "org.web3j:web3j-unit:$web3jVersion"
     implementation "org.web3j:web3j-evm:$web3jVersion"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
diff --git a/src/main/resources/project/erc777/build.gradleOpenApiErc777.template b/src/main/resources/project/erc777/build.gradleOpenApiErc777.template
index 8c99f34..eaa641a 100644
--- a/src/main/resources/project/erc777/build.gradleOpenApiErc777.template
+++ b/src/main/resources/project/erc777/build.gradleOpenApiErc777.template
@@ -1,5 +1,5 @@
 plugins {
-  id "org.web3j.openapi" version "4.8.3"
+  id "org.web3j.openapi" version "4.9.4"
 }
 
 group '<package_name>'