diff --git a/app/build.gradle b/app/build.gradle
index 2f62571..01a7d48 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -17,7 +17,6 @@ android {
     }
 
     buildTypes {
-
         debug {
             versionNameSuffix " Debug"
             debuggable true
@@ -59,7 +58,7 @@ android {
 dependencies {
 
     def daggerCompiler = "com.google.dagger:dagger-compiler:$rootProject.daggerVersion"
-    def jUnit = "junit:junit:4.12"
+    def jUnit = "junit:junit:$rootProject.junitVersion"
     def mockito = "org.mockito:mockito-core:$rootProject.mockitoVersion"
 
     // Support Dependencies
@@ -83,7 +82,7 @@ dependencies {
     implementation "com.squareup.okhttp3:logging-interceptor:$rootProject.okHttp3Version"
 
     //Glide for loading the images
-    implementation 'com.github.bumptech.glide:glide:3.7.0'
+    implementation "com.github.bumptech.glide:glide:$rootProject.glideVersion"
     implementation 'de.hdodenhof:circleimageview:2.1.0'
 
     // Dagger 2 Dependencies
@@ -103,10 +102,10 @@ dependencies {
     }
 
     //Sticky header RecyclerView
-    implementation 'org.zakariya.stickyheaders:stickyheaders:0.7.6'
+    implementation "org.zakariya.stickyheaders:stickyheaders:$rootProject.stickyheaderVersion"
 
     //Material Stepper UI library
-    implementation 'com.stepstone.stepper:material-stepper:3.3.0'
+    implementation "com.stepstone.stepper:material-stepper:$rootProject.materialstepperVersion"
 
     // Instrumentation test dependencies
     androidTestImplementation jUnit
@@ -131,7 +130,7 @@ dependencies {
     testImplementation "org.hamcrest:hamcrest-core:$rootProject.hamcrestVersion"
     testImplementation "org.hamcrest:hamcrest-library:$rootProject.hamcrestVersion"
     testImplementation "org.hamcrest:hamcrest-integration:$rootProject.hamcrestVersion"
-    testImplementation 'org.robolectric:robolectric:3.1'
+    testImplementation "org.robolectric:robolectric:$rootProject.robolectricVersion"
 
 }
 
diff --git a/build.gradle b/build.gradle
index 57bcbc9..920489d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -51,4 +51,8 @@ ext {
     runnerVersion = '0.5'
     rulesVersion = '0.5'
     espressoVersion = '2.2.2'
+    glideVersion = '3.7.0'
+    materialstepperVersion = '3.3.0'
+    robolectricVersion = '3.1'
+    stickyheaderVersion = '0.7.6'
 }