diff --git a/build.gradle b/build.gradle
index d92241f4..7d7aab4b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -178,13 +178,13 @@ uploadArchives.doFirst {
 }
 
 dependencies {
-	runtime project(':opt4j-core')
-	runtime project(':opt4j-satdecoding')
-	runtime project(':opt4j-operators')
-	runtime project(':opt4j-optimizers')
-	runtime project(':opt4j-benchmarks')
-	runtime project(':opt4j-viewer')
-	runtime project(':opt4j-tutorial')
+	runtime project('opt4j-core')
+	runtime project('opt4j-satdecoding')
+	runtime project('opt4j-operators')
+	runtime project('opt4j-optimizers')
+	runtime project('opt4j-benchmarks')
+	runtime project('opt4j-viewer')
+	runtime project('opt4j-tutorial')
 }
 
 jar {
@@ -228,8 +228,8 @@ task copyJavadoc(type: Copy, dependsOn: 'copyJavadocStyle'){
 	into 'build/website/javadoc/'+version
 }
 
-task copyTutorial(type: Copy, dependsOn: ":opt4j-tutorial:tutorial"){
-	from new File(project(':opt4j-tutorial').buildDir,'tutorial')
+task copyTutorial(type: Copy, dependsOn: "opt4j-tutorial:tutorial"){
+	from new File(project('opt4j-tutorial').buildDir,'tutorial')
 	into 'build/website/documentation/'+version
 }
 
@@ -274,7 +274,9 @@ task alldocs(type: Javadoc) {
 
 task release(dependsOn: [distZip,website] ){}
 
-wrapper.gradleVersion = '4.10.2'
+task wrapper(type: Wrapper) {
+    gradleVersion = '4.10.2'
+}
 
 task fatjar(dependsOn: subprojects.jar, type: Jar) {
     destinationDir = new File(project.buildDir, 'fatjar')
diff --git a/opt4j-benchmarks/build.gradle b/opt4j-benchmarks/build.gradle
index afd5b669..9d6b1ac0 100644
--- a/opt4j-benchmarks/build.gradle
+++ b/opt4j-benchmarks/build.gradle
@@ -1,4 +1,4 @@
 dependencies {
-	compile project(':opt4j-core')
-	compile project(':opt4j-satdecoding')
-}
\ No newline at end of file
+	compile parent.project('opt4j-core')
+	compile parent.project('opt4j-satdecoding')
+}
diff --git a/opt4j-operators/build.gradle b/opt4j-operators/build.gradle
index 6dce1097..9239d9c6 100644
--- a/opt4j-operators/build.gradle
+++ b/opt4j-operators/build.gradle
@@ -1,3 +1,3 @@
 dependencies {
-	compile project(':opt4j-core')
-}
\ No newline at end of file
+	compile parent.project('opt4j-core')
+}
diff --git a/opt4j-optimizers/build.gradle b/opt4j-optimizers/build.gradle
index afbebda5..2bb0a180 100644
--- a/opt4j-optimizers/build.gradle
+++ b/opt4j-optimizers/build.gradle
@@ -1,7 +1,7 @@
 dependencies {
-	compile project(':opt4j-core')
-	compile project(':opt4j-operators')
+	compile parent.project('opt4j-core')
+	compile parent.project('opt4j-operators')
 	
 	testCompile	group: 'junit',	name: 'junit', version: '4.12'
 	testCompile group: 'org.mockito', name: 'mockito-core', version: '2.22.0'
-}
\ No newline at end of file
+}
diff --git a/opt4j-satdecoding/build.gradle b/opt4j-satdecoding/build.gradle
index 4a51e8ff..58d322f8 100644
--- a/opt4j-satdecoding/build.gradle
+++ b/opt4j-satdecoding/build.gradle
@@ -2,7 +2,7 @@ dependencies {
 	compile group: 'org.ow2.sat4j', name: 'org.ow2.sat4j.core', version: '2.3.5'
 	compile group: 'org.ow2.sat4j', name: 'org.ow2.sat4j.pb', version: '2.3.5'
 	
-	compile project(':opt4j-core')
+	compile parent.project('opt4j-core')
 	
 	testCompile group: 'junit', name: 'junit', version: '4.12'
-}
\ No newline at end of file
+}
diff --git a/opt4j-tutorial/build.gradle b/opt4j-tutorial/build.gradle
index ca7df324..4b59a3fc 100644
--- a/opt4j-tutorial/build.gradle
+++ b/opt4j-tutorial/build.gradle
@@ -2,11 +2,11 @@ import org.apache.tools.ant.filters.*
 import java.util.regex.*
 
 dependencies {
-	compile project(':opt4j-core')
-	compile project(':opt4j-satdecoding')
-	compile project(':opt4j-optimizers')
-	compile project(':opt4j-operators')
-	compile project(':opt4j-viewer')
+	compile parent.project('opt4j-core')
+	compile parent.project('opt4j-satdecoding')
+	compile parent.project('opt4j-optimizers')
+	compile parent.project('opt4j-operators')
+	compile parent.project('opt4j-viewer')
 }
 
 task filterSources(type: Copy) {
@@ -49,4 +49,4 @@ task tutorial(type: Copy, dependsOn: filterSources) {
 		exclude '**/*properties'
 	}
 	into 'build/tutorial'
-}
\ No newline at end of file
+}
diff --git a/opt4j-viewer/build.gradle b/opt4j-viewer/build.gradle
index 2bd590a8..ab447ce5 100644
--- a/opt4j-viewer/build.gradle
+++ b/opt4j-viewer/build.gradle
@@ -1,7 +1,7 @@
 dependencies {
-	compile project(':opt4j-core')
+	compile parent.project('opt4j-core')
 }
 
 javadoc {
    exclude 'ptolemy/**'
-}
\ No newline at end of file
+}