diff --git a/build.gradle b/build.gradle
index 4f93892..cbafb11 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,7 +23,7 @@ apply plugin: 'idea'
 apply plugin: 'io.codearte.nexus-staging'
 
 group 'org.web3j'
-version '1.6.0'
+version '2.0.3'
 
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
@@ -33,7 +33,7 @@ ext {
     ossrhPassword = project.hasProperty('ossrhPassword') ? project.property('ossrhPassword') : ''
 
     web3jVersion = '3.3.1'
-    springBootVersion = '1.5.10.RELEASE'
+    springBootVersion = '2.0.3.RELEASE'
 
 }